database error when opening pt

i compressed my database lastnight and then today when i went to open pt again after a scheduled system restart i got this error msg:
******
unable to connect to the database
101 - SQLSTATE = 08001
server closed the connection unexpectedly
this probably means the server terminated abnormally
before or while processing the request
thanks in advance for any help
******
unable to connect to the database
101 - SQLSTATE = 08001
server closed the connection unexpectedly
this probably means the server terminated abnormally
before or while processing the request
thanks in advance for any help