If your plugin is hard rejected, you won’t be able to resubmit it (I assume the response email from Envato has noted this).
I’ve encountered a similar situation before. Currently, I don’t have any new plugins ready to submit and test my assumptions 
. However, you might find my insights helpful here: WordPress plugin got rejection email in less than 10 minutes! - #15 by polyxgo
You should consider using:
- Plugin Check to fix all errors as instructed. This plugin helps ensure your plugin meets the standards required by WordPress. I believe Envato follows similar criteria.
- Envato’s official WordPress plugin requirements: Envato WordPress Plugin Requirements
If you successfully submit your plugin, please share your experience! Many new authors struggle with this issue, and guidance is quite limited.