[Koha] server hang due to opac load

[vinod kumar]

Dear All,

I am using Koha 3.22.x on Debain 8.

>From last one week it observe that when I try to run Koha OPAC on 80 port,
the apache run opac cgi files on their own and lot of process get loaded
due to which server load get raised upto 130-140 load and server get hanged.

When I run opac on the same server with a port let say 8081, all process
worked fine and load of server remain below 1.

Can anyone have any idea what wrong with my server or confgiuration?