Hello @Eseose36
There are a few factors that could be contributing to the issue you are running into. There is a post on another Community forum that discuses one solution: https://community.zoom.com/t5/Zoom-Meetings/This-Meeting-Has-Been-Ended-By-Host/td-p/4165
As this appears to include multiple issues, I would advise that you reach out to Zoom support who would be able to assist with each individual issue as each one you have noted here appears nuanced with multiple factors which Zoom support could assist with.
Depending on cache or bad data, the 'host ended the meeting' message could be a backend issue that our teams would need to address.
Concerning the invalid email, this too can be analyzed by our support team to see what could be causing the issues with your email (blocked/bounced/etc.).
The invalid meeting ID could also be due to an expired meeting or a few other factors that should be best addressed outside of this forum.
Concerning the whiteboard messages as you were not clear as to what message you get, where you get it (i.e. web, desktop, phone, etc) I cannot further assist without more details.
I would advise to you at this point to run a clean Zoom if you are on a Windows machine and those instructions can be found here: https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0065146 Uninstall and reinstall Zoom, clear cache and cookies on your web browser, reboot your machine, and see if some basic troubleshooting can improve your performance at all.
I hope this helps and if this answers your question please make sure to mark this as a solution.
Thank you,
Jake