Analyze the Cause

For last few months, I have been applying to Freelancer.com and Upwork bids (nearly ~150 bids) but I have never got a single authentic project. This never happened with me before. This started suddenly after 2019-2020. The 3-4 project I have got, the employers betrayed with me, had me work done but didn't pay and vanished with lame excuses. And, I found out that I have been tracked, monitored in real-time, then whenever I place bid and get an authentic project, the next day, for some mysterious reason the employer never communicates with me. This also happened with local jobs. Then, very strangely, it is not possible to delete employer-freelancer chat on freelancer.com but, some fake people hired me on freelancer.com and their chat vanished strangely. How could that be possible?

Sincerely,
Atikul Haider