Relation between custom module and account

hello I try to create relation between modules
one module is custom
and i tryed to create a relation 1to N between my custom module and acoount module and I have this error
can someone help me

You need to turn off display_errors in your php.ini and restart web server.

This will remove the errors form the screen, and you should then look for them in your logs.

The “deprecateds” are safe to ignore (and also the “notice” , “info”, and “debug”…)

But if Module Builder really doesn’t work, you probably will find more serious errors in your log. These are the ones you should focus on.

thank you in the log i only have the same error and now I have fatal error when i clic on create on my new module
verry strange I really desperate