This is weird because the error appears only for the log coupon, can you tell me in the table: xf_purchase_request and once download: extra_data: Screenshot you have couponid: Screenshot for the request: 5QepJ_NHGH0b35E3o-urYwuauoecsYhz
Unfortunately, the member who purchased the upgrade causing the error has since canceled the upgrade so it no longer appears in the database table xf_purchase_request or in the upgrade coupons log or in any of the other upgrade logs.
I guess I'll just have to wait to see if the error recurs. Thanks for your time.
Yeah it's a bit weird ! however I found an error (which is not too annoying or not at all), this error is in the coupon log, it doesn't display the username who used the coupon, this will be fixed in the next update.
I may have fixed the problem (it's not sure, I'll test it) and I'll give it to you to see if it's fixed, the problem is that you'll have to wait a little while for a guy to buy a subscription on your site.