if you searched in google Plugins not working with my theme, then you are in the right place now
Step1:
Simply go to ACP=>Configuration=> plugins
uninstall al your plugins
Step2:
go to ACP => Templates & Style => import your theme
Step3:
back to ACP=>Configuration=> plugins
and re-install your plugins
it should work now.
Note: because plugins add some variables to the theme you need to find those variable and add them to your theme if you imported the theme after installing the plugins or just follow the steps above.