Plugin Installation Error (MD-0011-0) After Fab Migration

Hi!

My client wrote to me that he cannot install the Camera 360 v3 plugin https://www.fab.com/ru/listings/8128757d-e7ca-4482-92f0-aa520cdea238 , he gets this error Error Code: MD-0011-0 .

Also, other clients write that they cannot add a plugin to the project. Help please.