Hi @Uniklee ,

Nabvigate to developer.servicenow.com and login. Just after your name click on arrow on top right side. You will see many options- click on Change user role and seelct Admin and save. Once your Role is changed to - Admin, check if all is ok. 

If still not working - Click on Plugina nd try to repair App engine studio Plugin.

If my answer helped you, please mark it- solution accepted.

Regards,

Nikhil Bajaj