Getting an Activation Error when trying to activate a Stored Procedure

I have built a stored proc (logged in as user "SYSTEM" and when trying to activate it I get an error thrown back as per graphic below:

I have also tried to run "GRANT SELECT ON SCHEMA "MYSCHEMANAME" TO _SYS_REPO WITH GRANT OPTION" in the SQL console to fix this problem but get the following error message:

"Could not execute 'GRANT SELECT ON SCHEMA "MYSCHEMANAME" TO _SYS_REPO WITH GRANT OPTION' in 3 ms 99 µs .

SAP DBTech JDBC: [258]: insufficient privilege: Not authorized".

And finally, I have tried the route of going into Security -> Users -> _SYS_REPO -> Object Privileges and allocating the privileges (as per the image below) but again get an error stating the the grantor and grantee are identical (as seen at top of image below).

Can anyone help with this...it is driving me mad.

Thanks,

Clint