Hey ​@Laksh Mandal , thanks for flagging this!
I checked on my side and saw that you’ve already been in touch with our support team, thanks for reaching out to us!
They replied to your case and are waiting on your response. When you have a moment, please check your inbox and you can reply directly there if you need more help.
 

For anyone else who might run into a similar issue: this usually happens when the plugin code is larger than the 15MB limit. Reducing the code size below 15MB should allow you to re-publish. Our engineering team is also working on making this error message clearer in the UI to help avoid confusion in the future. Thank you!