Edit: after fiddling with this with the entire team we decided we would create an issue on the github repository
Checked both of them now. Nothing is missing, also checked with some colleagues. But I probably found another lead.
The function that it can’t get in line 35:
is the translation function called StaticTranslator. This function is inside the incubator module. I reinstalled, disabled and enabled it but there is still no use to it. But it might be a lead at least.
I got to the idea from another similar problem: