Template issues - Joomla! Forum - community, help and support

hi,

i using template liked options joomla gave seem having strange issues.

when make changes doesnt seem apply properly.

i thought due cache no matter how many times erase or use different device view site, seems load default page or loads how should.

the site is
https://testmagazine.joomla.com/

and should have violet background , temporary articles testing.

the top article should show picture of bikes ok, when click link doesnt show top image should.

sometimes reverts default image off template or doesnt show because ive deleted images dont need.

but in article manager image has been set company logo.

also there contact form cant seem work, dont have access other in control panel.

if can fix site issues randomly defaults default template rather changes made , how fix contact form (if not how delete not on site).

thanks