I hope you mean you installed the correct version for Elgg 3.3, which on the community is version 14.0.1. On Github we have version 15 available https://github.com/ColdTrick/profile_manager/releases When enabled on the admin backend under... view reply

If you don't wish to have any English translations or your site, then yes. The Elgg core languages are maintained in Transifex and pull before every new release (they need a certain percentage complete before they are included). See... view reply

the system will always use English as the ultimate fallback, as the system is build with the English language as base view reply

this can happen if the language you selected isn't translated completely. When selecting the default language under the site settings you can see the percentage translated behind the language name view reply

what does the webserver error log say at the time of this exception. That could give us more information to help you view reply

A security release for Elgg 2.3 & 3.3 is now available

In Elgg 3 the normalization of the metadata/metastring table was removed. This will help in speeding up those kind of queries. Time to update ;) view reply

if you draw a 'widget' layout (like done in https://github.com/Elgg/Elgg/blob/a836dda6e17954f8825c728d69b6113e38a01332/mod/dashboard/views/default/resources/dashboard.php#L5-L11) the function 'elgg_can_edit_widget_layout()' is called... view reply