[Plugin: W3 Total Cache] Site not opening when it working.

Hello,
I recently updated this plugin and today I saw that my site isn’t opening on other’s computer and mobile. While it open on my computer without any problem, but when I deactivated it my site get to normal. So what’s the problem?
By the way, I was recently started getting this error: Recently an error occurred while creating the CSS / JS minify cache: [address to my theme folder, but twice, for example- ***/wp-contents/themes/Tricky_Techs/Tricky_Techs] I didn’t remember the full error as it get hidden after some time.

So please plugin author solve this.

My site: Tricky Techs
Plugin: W3 Total Cache