My website crashes whenever 70-80 people connect to it. I've seen that whenever there are 70-100 people online on my site, it crashes. Sometimes it gives an error "Error Establishing Database Connection"

I have this package of hosting at Vps.net:
Dedicated CPU 1.2GHz
Dedicated RAM 752MB
Disk space20GB
Network transfer500GB

Please Help.
clown07 Reviewed by clown07 on . [Help] Why My Website Crashes My website crashes whenever 70-80 people connect to it. I've seen that whenever there are 70-100 people online on my site, it crashes. Sometimes it gives an error "Error Establishing Database Connection" I have this package of hosting at Vps.net: Dedicated CPU 1.2GHz Dedicated RAM 752MB Disk space20GB Network transfer500GB Please Help. Rating: 5