I clicked the link from the sidebar event to pay for my slot on the Well-Loved Dog Accessories cw and got taken to https://subeta.net/explore/custom_clothing.php?act=payments where I had the error:

I was able to get around it by clicking the CW link through the cash shop menu (which takes me to the same page, but didn't give me the SQL error)

Have you had this problem since? (Sorry it's been a rough week)

I've not had a slot to pay since, so I haven't been back to the page to look again ;) I did just check back on the page now, and didn't get an error.

Glad it isn't showing. If you do get another slot on something and it happens again please let me know and I can unlock this!!!