Alright, I can see that nobody here is being helpful, so I'll give you instructions on how to fix this. You uploaded your photo into the wrong format, luckily, Deviantart has a solution for this. Just click this link here [link], choose 'yes' and your mistake will magically disappear.
I see you've failed to read the part about Complaints that says not to expect anything to change What I want to know is whether you just didn't see it, didn't comprehend it, or if you thought it didn't apply to you.
Any number of completely unforseen factors. The pixel data of your image could have been the right binary combination to cause a hexadecimal error, resulting in corrupted executables within the account. Your account could be sitting on a null district on the system server, essentially causing a blackout of functionality for that segment of data. Either way, whatever corruption occurred, it's not fixable, any attempts to do so would result in infecting other accounts with the problem. You need to deactivate to prevent spread and start a new account.
Depending on where you saved it, a compounded binary error could have traveled from your account to where ever you had the image saved. That's why the error disappeared. When you submit things it's like opening a door, things can get send out but things can also come in, and based on that it seems like it traded the corruption from that file on the account to where ever you had it saved first.
That can happen, since it's a corruption at the machine level, which could result in a false negative sometimes, making it appear as if your account has been restored but it hasn't, trust me, it's not.