Hi and sorry for late reply.
Try to follow these steps:
1) A title like "MY PROFILE+" is not valid as Joomla language constant, so change the the tile of the Field group from "MY PROFILE+" to "MYPROFILE"
2) Go to Extensions->Language->Override
3) Filter for language "English (United Kingdom) - site"
4) Click to "New" button and create an override like screenshot
5) Filter for language "Thai (th-TH) - site"
6) Click to "New" button and create an override also for this language
You should make the same for all other fields
TIP: for each language the Joomla translations are written in a simple field located in "/language/override/", so steps 2,3,4,5,6 are necessary only the first time (to create the override file), to add all other translations the fastest way is to edit directly the override file
The category names in social network plug such as Photos, Events, Groups
Mmmmh this is not possible. Anyway I understand that this is necessary for multilanguage sites. On Monday I will send you the modifications to the code with the procedure to translate it (modifications will be added in the next release of the plugin).