Plesk Error not login [Help]

[Aydın]

I can not login.
I do localhost entry "ERROR: session_exceptio's: Unable to set up a default locale: default locale does not exist or is undefined. (Panel.php: 75)"
I get an error.
MySite: 8880 When I log in as "500 - Internal server error." I Ailyn error.

Panel.php file server as:
<? Php
die ( "The file Panel.php is part of Plesk distribution. It can not be run outside of Plesk environment. \ n");
__sw_loader_prag on __ ('PLESK_12_5');
?>
? Ì.? üóáv¹¸q .2äûμÿ "¯êğíüq 'êûéán -9? Nc ?? ³ ‰, ióîgaûbä« | L) £ ???? R ??'? Aózşzùú¶œ <+ À? ÓBA6 Ú? Ê '‡ € P ÛCVª ??? _ ?? ·? üwú è ¢ ?? u?] ªñü of ~? ~ è ¥ é, ïğb'ojn the †? tüêàƒ "÷? This present! <Rš.ñœ?@ßå¥õh? "4:
It continues in this way.

 

[IgorG]

First of all try to repair your Plesk server with repair utility, if you have Plesk 12.5 version.
Also following article may be useful for you - https://kb.plesk.com/en/116914

 

[Aydın]

How do I run the program?

 

[IgorG]

How do I run the program?

What program do you mean?

 

[Aydın]

Plesk 12.5 Reconfigurator - > Repair plesk installation
I tried the programs but the problem continues.

 

[IgorG]

What about repair with all aspect http://docs.plesk.com/en-US/12.5/ad...sk-administration/plesk-repair-utility.74649/ ? And what about solution from KB article? Have you tried it?

 

[Aydın]

I could not. If I give you the password you help?

 

[IgorG]

Have you tried to ask the assistance of Plesk Support https://cscontact.plesk.com/form/32/?Product=Plesk ?