would like help making or re-making a plugin

I'v tried all the cover photo plugins for a simple facebook style banner at the top just for groups and member profiles but non of them are working for me.

https://elgg.org/plugins/1960721 this one had a fatal error (i can get the error message if needed) and the others some other kind of error.


So i'm not a coded, i know very little but i would like to make this or help re-fixing the errors.


i'm not bothered about it looking and working exactly like facebook with the 'upload photo' buttons etc etc .... i just want it simple as a 100% wide non-blurry photo banner that fits with my theme.


thank you.

i use aalborg theme and my elgg is version 2.3.1