Submission Failed: Unknown submission problem on data server (409)!

Hello all,
I have 64 forms on KoboToolbox that I’ve been editing without issues for the past 5 months. However, I recently encountered a problem. I was able to edit the first four forms, but after that, I started receiving the following error for the rest of them:
Submission Failed: Unknown submission problem on data server (409).
I’ve tried several troubleshooting suggestions I found on the community page, but none of them worked. Could anyone please assist me with this issue?

Welcome to the community, @GolnarVand! Could you kindly share with me the following details through a private message so that I can have a closer look at your case?

  • Username
  • Server
  • Project name

Note: You could share with me a private message as outlined in the post discussed previously:

Hello, sure I can. I just want to first make sure this is the private section. If yes, please confirm it and I will send you my account information.
Thanks

Hello, sure I can. I just want to first make sure this is the private section. If yes, please confirm it and I will send you my account information.
Thanks

@GolnarVand, follow this post discussed previously to send a private message:

Hello, I have the same error