So Magento "suddenly" gave me this error:
POST https://www.samplesite.nl/ajax/index/add/uenc/aHR0cHM6Ly93d3cub3ZlcnRyZWt…IyMC5odG1sP19fX1NJRD1VJnN0b3JlPQ,,/product/1383/form_key/f7PMMUeIktiFmSpv/ 404 (Not Found)
I haven't added a plugin or something what-so-ever it just suddenly appeared. So what I understand out of this question is, that the link is incorrect. Unfortunately, I have very little knowledge of Magento. I did not understand how to fix this from that question.
So how do I fix this? Where is the file located? What code needs to be altered to fix this?
Or maybe another solution?
Thanks in advance!
Many possibility possible in this case like
so you have to check one by one case in your magento. If you still not find the problem then let me know.