h4ns3n

I seem to be back up and running with out any loss of functionality. The fix was seemingly not too painful in the end. It was more of a mosquito bite than a snake bite. I'm not sure which of the steps below resolved the problem for me. Perhaps a combination. I didn't delete anything in my WHMCS folder. I just copied over the patch update which seemed to do something but eventually resulted in the same error. I was getting error 500. I then copied over all the 7.1.2 files and everything just worked (aside form needing to delete the install folder) Upgrade done, all integrations still 100% functional.

I'm new to WHMCS so I guess this is lesson learnt. This is quite a ludicrous really - getting my integrations to work propoerly took a VERY long time. Now, because of an "update" I have to basically start over. Not sure WHMCS is worth the hassle really. I have logged a support ticket so lets see what comes of that.