Tab is not showing unless you click next tab

Hello everyone,

I have a small issue that i couldn’t fix. Basically the tab doesn’t show on page load. I am able to recognize links etc on hover, but nothing visible. When i click next tab then i can see it, then i can get back to first tab it gets visible, what a comedy ha :smiley: . Anyone knows what makes the problem?

ready only link:

I tried to add a code but still didn’t work out, it’s so weird but i am thinking maybe white screen is overlaying the tab.