HELP: Oracle data corruption after flashback, can't get support on weekend

This is an act of desperation. I will pay you if you help me. Email marion.bates@sau70.org. Sorry for abusing the forums like this but I don't know what else to do.

I think I need to restore from a backup, but we just did a flashback restore on Thursday night, and I know the support guy said that if we needed to go back further, we had to get help from support...also I think I followed the wrong version of the "oracle_backup_restore_ug" document...ALSO the server crashed hard yesterday and had to be power-cycled and now I get this error everywhere I turn:

ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [4194], [19], [21], [], [], [], [],
[]

Anyone, can you help me today (Sunday March 7th)?

Thank you and sorry.

-- MB
New Hampshire USA