Opened .crt file, but no "Profiles" in Settings?

[iExchange]

Recently I opened a .crt file from the Mail app on my iPhone 4s, it jumps to the Settings App after that. However I don't see the "Profiles" menu under "General"(it should be there though). How can I get this fixed?

Please help it is very important for my project in the works.

Any help/idea is greatly appreciated, thanks!

[iExchange]

Please kindly help, I really need this for my project
Thanks buddies!