Error 500 in Back Office

[Lukas Truninger]

Hello,
If I like to edit a customer, allmost all customers endup on the error 500 page. However, I found one customer which opens correctly in the customer edit window. For debuging I have then edited directly in the database next customer (which ends up on error 500 page), using exactly the same values for all fields (except the ID) in order to check if the issue is caused by some illegal values. This also includes the associated address. But it does not solve the issue. I have now 2 identically customers in the database: one I can edit, the other ends on error 500 ....(respectively on attached page if Debug Mode is on).....??
I already spent a whole week to investigate this terrible issue, I have deleted cache, I have deleted /var/cache/prod, I have deleted & rebuild htaccess, I have set server max_vars to 9999, I have set max_execution time to 18000,  .......????
Please see this video: https://prostage.eu/customer_edit.mov

PS 1.7.6.1
Thanx for any help

Lukas

[joseantgv]

Regarde un peu ça :

 

[Lukas Truninger]

Thanx for this link. Unfortunately, in my case this did not solve the problem; values in database are ok. But it looks like the issue has to do something with orders. As far as I could retrace, the customer which do NOT endup on error 500 page did never place an order. I endup on error 500 page if I try to edit a customer who did already place an order.
Also it is not related to imported customer; the issue is also for customers who did create their account running PS 1.7.6.0 / 1.7.6.1
Further, I also end up on error 500 page if I try to set the order state to "payment accepted".