Please check event logs to see if anything relevant there.
Also please check content of uploaded connector zip file to see if connector-spec.json is present and may be you can share content of this file here.
hello @ralph-mishiev - the issue got resolved somehow on its own when I tried after few days.
From my understanding, it looks like the connector package file wasn’t compiled correctly and hence was giving me issues. Re-compiling the code and trying it after few days resolved the issue on its own