apache crash after disable account white page

[mydebians]

hello

i have a big problem

i have disable an account and juste after it, i have a white page in my panel and all accounts on the server ( just a white page )

i cant access on phpmyadmin too
i have try a regeneration files ispcp too

in my syslog i can see this one:

Quote:Mar 19 00:22:43 server kernel: apache2[20749]: segfault at 0 ip 0000000000422ebd sp 000000004202afe0 error 4 in apache2[400000+5c000]
Mar 19 00:23:08 server kernel: apache2[21423]: segfault at 0 ip 0000000000422ebd sp 0000000042e78fe0 error 4 in apache2[400000+5c000]
Mar 19 00:23:09 server kernel: apache2[21477]: segfault at 0 ip 0000000000422ebd sp 0000000043601fe0 error 4 in apache2[400000+5c000]
Mar 19 00:23:14 server kernel: apache2[21590]: segfault at 0 ip 0000000000422ebd sp 0000000042df8fe0 error 4<6>apache2[21591]: segfault at 0 ip 0000000000422ebd sp 00000000435f9fe0 error 4 in apache2[400000+5c000]
Mar 19 00:23:14 server kernel: in apache2[400000+5c000]
Mar 19 00:23:15 server kernel: apache2[21646]: segfault at 0 ip 0000000000422ebd sp 0000000043121fe0 error 4 in apache2[400000+5c000]
Mar 19 00:23:26 server kernel: apache2[21935]: segfault at 0 ip 0000000000422ebd sp 0000000046d61fe0 error 4 in apache2[400000+5c000]
Mar 19 00:23:45 server kernel: apache2[22458]: segfault at 0 ip 0000000000422ebd sp 0000000042abdfe0 error 4 in apache2[400000+5c000]

this server is on RC 7 version an 2.2.3 apache version

i can pay for intervention and if it's possible upgrade to stable version

bests regards for your response