Event Calender Bug in Elgg 1.8.8

I am using elgg 1.8.8 and event calander plugin from https://github.com/kevinjardine/Elgg-Event-Calendar

in the add event form the regoin and type drop down is displaying someting like this
event_calendar:region:Region1
event_calendar:region:Regoin2

same for the type
event_calendar:type:Type1
event_calendar:type:Type2

Plese help me how can i resolve this problem. This plugin is working fine in elgg 1.8.3 that is setip in my localhost but not working in elgg 1.8.8 that is actually setup in my server.