Grab up your favorite text editor, and open up .../blogs/b2evocore/_functions_pings.php. What's on line 126?

Have you edited the file at all?

there is " /* " on line 126 so doesn't help.

Trying to continue installation, all table are well created but have at the end lot's of error messages when trying to go admin page:

Warning: Unterminated comment starting line 126 in /httpdocs/blog/b2evocore/_functions_pings.php on line 126

Warning: Cannot modify header information - headers already sent by (output started at /home/httpd/vhosts/celebrites-selection.com/httpdocs/blog/b2evocore/_functions_pings.php:126) in /httpdocs/blog/b2evocore/_functions_users.php on line 123

Warning: Cannot modify header information - headers already sent by (output started at /home/httpd/vhosts/celebrites-selection.com/httpdocs/blog/b2evocore/_functions_pings.php:126) in httpdocs/blog/b2evocore/_functions_users.php on line 124

Warning: Cannot modify header information - headers already sent by (output started at /home/httpd/vhosts/celebrites-selection.com/httpdocs/blog/b2evocore/_functions_pings.php:126) in /blog/b2evocore/_functions_users.php on line 125

Warning: Cannot modify header information - headers already sent by (output started at /home/httpd/vhosts/celebrites-selection.com/httpdocs/blog/b2evocore/_functions_pings.php:126) in //httpdocs/blog/b2evocore/_functions_users.php on line 126
IdentificationVous devez vous identifier!

:'(

there is " /* " on line 126 so doesn't help.

That's not what's in the file on your webserver.
Upload that file again (b2evocore/_functions_pings.php) and try again.

Also, are you using version 0.9.0.10?