How I can get config data in frontend?

Congratulations on still maintaining and upgrading this wonderful system for us! I have the following problem. In the administrative panel I create additional settings in the “Config” module: address, phone

I’m trying to get them in the frontend part like this: <? = Config :: get ('phone'); ?> however, the whole site “bugs” and gives an error. I need it so that I can correct it in case of a change of company address or company phone number. Since such options are missing in CMS Settings, I decided that it might be done through the Config module … but unfortunately it does not work.

Thanks for helping me.