Problems with the Plugin Market

I installed the Market plugin, and when I delete some post this error occurs below, has anyone gone through this?

Error Critical

Call to undefined method ElggObject::getOwner()

Error Object
(
[message:protected] => Call to undefined method ElggObject::getOwner()
[string:Error:private] => Error: Call to undefined method ElggObject::getOwner() in /home/u662297310/public_html/mod/market/lib/market.php:68
Stack trace:
#0 /home/u662297310/public_html/mod/market/actions/delete.php(17): market_delete_post(Object(ElggObject))
#1 /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/ActionsService.php(132): include('/home/u66229731...')
#2 /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/ActionsService.php(121): Elgg\ActionsService::includeFile('/home/u66229731...')
#3 /home/u662297310/public_html/vendor/elgg/elgg/engine/lib/actions.php(20): Elgg\ActionsService->execute('market/delete')
#4 [internal function]: _elgg_action_handler(Array, 'action')
#5 /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/Router.php(95): call_user_func('_elgg_action_ha...', Array, 'action')
#6 /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/Application.php(429): Elgg\Router->route(Object(Elgg\Http\Request))
#7 /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/Application.php(377): Elgg\Application->run()
#8 /home/u662297310/public_html/index.php(8): Elgg\Application::index()
#9 {main}
[code:protected] => 0
[file:protected] => /home/u662297310/public_html/mod/market/lib/market.php
[line:protected] => 68
[trace:Error:private] => Array
(
[0] => Array
(
[file] => /home/u662297310/public_html/mod/market/actions/delete.php
[line] => 17
[function] => market_delete_post
[args] => Array
(
[0] => ElggObject Object
(
[url_override:protected] =>
[temp_metadata:protected] => Array
(
)

[temp_annotations:protected] => Array
(
)

[temp_private_settings:protected] => Array
(
)

[volatile:protected] => Array
(
)

[orig_attributes:protected] => Array
(
)

[attributes:protected] => Array
(
[guid] => 205
[type] => object
[subtype] => 17
[owner_guid] => 36
[site_guid] => 1
[container_guid] => 36
[access_id] => 2
[time_created] => 1479737478
[time_updated] => 1479743714
[last_action] => 1479737479
[enabled] => yes
[title] => Vendo U20
[description] => Vendo U20 Frateschi Fepasa Fase III
)

[valid:protected] =>
)

)

)

[1] => Array
(
[file] => /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/ActionsService.php
[line] => 132
[args] => Array
(
[0] => /home/u662297310/public_html/mod/market/actions/delete.php
)

[function] => include
)

[2] => Array
(
[file] => /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/ActionsService.php
[line] => 121
[function] => includeFile
[class] => Elgg\ActionsService
[type] => ::
[args] => Array
(
[0] => /home/u662297310/public_html/mod/market/actions/delete.php
)

)

[3] => Array
(
[file] => /home/u662297310/public_html/vendor/elgg/elgg/engine/lib/actions.php
[line] => 20
[function] => execute
[class] => Elgg\ActionsService
[type] => ->
[args] => Array
(
[0] => market/delete
)

)

[4] => Array
(
[function] => _elgg_action_handler
[args] => Array
(
[0] => Array
(
[0] => market
[1] => delete
)

[1] => action
)

)

[5] => Array
(
[file] => /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/Router.php
[line] => 95
[function] => call_user_func
[args] => Array
(
[0] => _elgg_action_handler
[1] => Array
(
[0] => market
[1] => delete
)

[2] => action
)

)

[6] => Array
(
[file] => /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/Application.php
[line] => 429
[function] => route
[class] => Elgg\Router
[type] => ->
[args] => Array
(
[0] => Elgg\Http\Request Object
(
[attributes] => Symfony\Component\HttpFoundation\ParameterBag Object
(
[parameters:protected] => Array
(
)

)

[request] => Symfony\Component\HttpFoundation\ParameterBag Object
(
[parameters:protected] => Array
(
)

)

[query] => Symfony\Component\HttpFoundation\ParameterBag Object
(
[parameters:protected] => Array
(
[__elgg_uri] => /action/market/delete
[guid] => 205
[__elgg_ts] => 1484520857
[__elgg_token] => J742O71DsVUedAkuO0ODGQ
)

)

[server] => Symfony\Component\HttpFoundation\ServerBag Object
(
[parameters:protected] => Array
(
[PHP_FCGI_CHILDREN] => 0
[PATH] => /sbin:/usr/sbin:/bin:/usr/bin
[PWD] => /opt/php
[SHLVL] => 0
[PHP_FCGI_MAX_REQUESTS] => 0
[SCRIPT_NAME] => /index.php
[REQUEST_URI] => /action/market/delete?guid=205&__elgg_ts=1484520857&__elgg_token=J742O71DsVUedAkuO0ODGQ
[QUERY_STRING] => __elgg_uri=action/market/delete&guid=205&__elgg_ts=1484520857&__elgg_token=J742O71DsVUedAkuO0ODGQ
[REQUEST_METHOD] => GET
[SERVER_PROTOCOL] => HTTP/1.1
[GATEWAY_INTERFACE] => CGI/1.1
[REDIRECT_URL] => /action/market/delete
[REDIRECT_QUERY_STRING] => __elgg_uri=action/market/delete&guid=205&__elgg_ts=1484520857&__elgg_token=J742O71DsVUedAkuO0ODGQ
[REMOTE_PORT] => 61551
[SCRIPT_FILENAME] => /home/u662297310/public_html/index.php
[CONTEXT_DOCUMENT_ROOT] => /home/u662297310/public_html
[CONTEXT_PREFIX] =>
[REQUEST_SCHEME] => http
[DOCUMENT_ROOT] => /home/u662297310/public_html
[REMOTE_ADDR] => 201.14.48.249
[SERVER_PORT] => 80
[SERVER_ADDR] => 31.220.104.4
[SERVER_NAME] => www.cartelcaipira.com
[SERVER_SOFTWARE] => Apache
[SERVER_SIGNATURE] =>
[LD_LIBRARY_PATH] => /opt/httpd/lib
[HTTP_UPGRADE_INSECURE_REQUESTS] => 1
[HTTP_CONNECTION] => close
[HTTP_COOKIE] => em_cdn_uid=t%3D1482695191170%26u%3Dd0a64ced313048e3969c8904f4e2565c; em_p_uid=l:1484509136933|t:1482695386620|u:625839204d024783950ea617a1ce21e0; plupload_ui_view=thumbs; Elgg=8e2903f4c1887f314dbbf53127c23261
[HTTP_REFERER] => http://www.cartelcaipira.com/market/category?offset=5
[HTTP_ACCEPT_ENCODING] => gzip, deflate
[HTTP_ACCEPT_LANGUAGE] => pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3
[HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
[HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 10.0; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0
[HTTP_HOST] => www.cartelcaipira.com
[BINARY_SERVERADMIN] => webmaster@cartelcaipira.com
[SERVER_ADMIN] => webmaster@cartelcaipira.com
[UNIQUE_ID] => WHv9qwoBAisAAuIknyoAAAD1
[REDIRECT_STATUS] => 200
[REDIRECT_dont_vary] => 1
[REDIRECT_no_gzip] => 1
[REDIRECT_BINARY_SERVERADMIN] => webmaster@cartelcaipira.com
[REDIRECT_SERVER_ADMIN] => webmaster@cartelcaipira.com
[REDIRECT_UNIQUE_ID] => WHv9qwoBAisAAuIknyoAAAD1
[FCGI_ROLE] => RESPONDER
[PHP_SELF] => /index.php
[REQUEST_TIME_FLOAT] => 1484520875.7753
[REQUEST_TIME] => 1484520875
)

)

[files] => Symfony\Component\HttpFoundation\FileBag Object
(
[parameters:protected] => Array
(
)

)

[cookies] => Symfony\Component\HttpFoundation\ParameterBag Object
(
[parameters:protected] => Array
(
[em_cdn_uid] => t=1482695191170&u=d0a64ced313048e3969c8904f4e2565c
[em_p_uid] => l:1484509136933|t:1482695386620|u:625839204d024783950ea617a1ce21e0
[plupload_ui_view] => thumbs
[Elgg] => 8e2903f4c1887f314dbbf53127c23261
)

)

[headers] => Symfony\Component\HttpFoundation\HeaderBag Object
(
[headers:protected] => Array
(
[upgrade-insecure-requests] => Array
(
[0] => 1
)

[connection] => Array
(
[0] => close
)

[cookie] => Array
(
[0] => em_cdn_uid=t%3D1482695191170%26u%3Dd0a64ced313048e3969c8904f4e2565c; em_p_uid=l:1484509136933|t:1482695386620|u:625839204d024783950ea617a1ce21e0; plupload_ui_view=thumbs; Elgg=8e2903f4c1887f314dbbf53127c23261
)

[referer] => Array
(
[0] => http://www.cartelcaipira.com/market/category?offset=5
)

[accept-encoding] => Array
(
[0] => gzip, deflate
)

[accept-language] => Array
(
[0] => pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3
)

[accept] => Array
(
[0] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
)

[user-agent] => Array
(
[0] => Mozilla/5.0 (Windows NT 10.0; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0
)

[host] => Array
(
[0] => www.cartelcaipira.com
)

)

[cacheControl:protected] => Array
(
)

)

[content:protected] =>
[languages:protected] =>
[charsets:protected] =>
[encodings:protected] =>
[acceptableContentTypes:protected] =>
[pathInfo:protected] =>
[requestUri:protected] => /action/market/delete?guid=205&__elgg_ts=1484520857&__elgg_token=J742O71DsVUedAkuO0ODGQ
[baseUrl:protected] =>
[basePath:protected] =>
[method:protected] =>
[format:protected] =>
[session:protected] =>
[locale:protected] =>
[defaultLocale:protected] => en
)

)

)

[7] => Array
(
[file] => /home/u662297310/public_html/vendor/elgg/elgg/engine/classes/Elgg/Application.php
[line] => 377
[function] => run
[class] => Elgg\Application
[type] => ->
[args] => Array
(
)

)

[8] => Array
(
[file] => /home/u662297310/public_html/index.php
[line] => 8
[function] => index
[class] => Elgg\Application
[type] => ::
[args] => Array
(
)

)

)

[previous:Error:private] =>
)