Not able to create relationship with the model builder

HI, i’m fairly new to Suitecrm and i’m currently checking if we should change crm in our compagny to this one. I have installed the most recent version of suitecrm locally on windows. I’ve been trying to create relations ship via the model builder but each time its crashed. The relationship table are created in the database so i don’t think that this is the problem. Is get the error message on the second image and it doesn’t let me do anything unless I refresh the page.
The suitecrm.log seems to be empty regarding that error.Thank you for your help

I forgot to say that i tried to repair and quick build but it didn’t fiz the issue