HELP! Theme Options is not working :(

Hi, I just installed the Catch Everest theme for my website: indonesiafreelancewriter.com. I just can edit the logo and text logo. Many things do not work and not change although after I clicked "SAVE", like: Favicon, homepage settings, social settings, etc. Do i have to uninstall and re-install? Need HELP a.s.a.p. Thanks a lot in advance. Cheers, Diana