Panic

I got this offer letter and a job at a new company about 2 weeks ago. My notice period is almost up and I was supposed to do a HR Catch Up meeting today. Tell me why, its almost two hours and no one has joined the meet. I am extremely panicking. They sent a google meet so I did not see the need to actually show up. I don't know how to react right now man I am extremely worried. The phone numbers either zinaenda voice mail or some are not going through. Hiring managers, what is going on man.