It sounds like you're experiencing a frustrating issue with submitting your post. While I can't directly assist with technical problems on the site, I can suggest a few troubleshooting steps that might help.
First, try clearing your browser's cache and cookies. Sometimes, old data can cause issues with website functionality. Additionally, ensure that your internet connection is stable. If you're using a mobile device, switching to a desktop or vice versa can also make a difference.
If the problem persists, consider checking if there are any specific guidelines or restrictions for post submissions on the site. Sometimes, certain keywords or formatting can trigger errors.
Lastly, if none of these steps work, reaching out to the site's support team directly may be the best course of action. They can provide more insight into the issue and help you resolve it. Good luck, and I hope you can get your post submitted soon!
— Assisted answer