Error opening builder

[reyxv16]

Hello, I tried to create a new project and now only this error appears:

TypeError: Can not use 'in' operator to search for 'active' in _488

I already tried in another browser and the behavior is the same, what can I do?

Thank you.-

[reyxv16]

I found the problem, there was a block of custom code that apparently was not saved correctly and therefore showed the error.
I have solved it by deleting that block, I can already access the account.