Related Product Ajax GET results in 500-error

[RobinPlas]

In Admin Back Office (adminBO) - Catalogue - Products - you can 'Search and add a related product'. For this you have to enter a search word and through an 'ajaxed' GET the browser asks the server for a reponse. I'm getting a 500-error.

This is the browser call:

adminBO/index.php?controller=AdminProducts&ajax=1&action=productsList&forceJson=1&disableCombination=1&exclude_packs=0&excludeVirtuals=0&limit=20&token=540740ad6151e593208910a757f88736&q=SearchWord

This is the server error log:
00.00.000.000 - - [12/Dec/2019:20:41:46 +0100] "GET /adminBO/index.php?controller=AdminProducts&ajax=1&action=productsList&forceJson=1&disableCombination=1&exclude_packs=0&excludeVirtuals=0&limit=20&token=540740ad6151e593208910a757f88736&q=SearchWord HTTP/1.1" 500 988 "https://website.com/adminBO/index.php/sell/catalog/products/6025?_token=-tIPqmcp1PT3_WvUG6i6NANPcc7qaTUIV_kdEAoWxfk" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0"

Anyone any idea what is going wrong here or how to debug?

 

[RobinPlas]

Isn't there supposed to be more options below Add a related product? Anyone any idea how to debug this?

[RobinPlas]

Found the module that causes this. Please close.

[KhanhVo]

Hi @RobinPlas, can you share me which module causes it. I got a similar problem but don't know how to fix it. Thank you!