SquirrelMail not found in directadmin

[mr-cracker]

Hello,
I'm actually facing problems email now, and i found this webmail in directadmin, but when i click on it it takes me ip/squirrelmail which is not found on my server

how can i fix this please

 

[scsi]

cd /usr/local/directadmin/custombuild
./build update
./build set squirrelmail yes
./build squirrelmail d