HI there all, tried to find the answer here, but haven't found. I deleted one project from the project folder and its still visible on the page. Even when i want to see thumbnail gridder, its still there if I deleted it permanently already before.

As you can see online or on the screenshot, there is still empty gap.
I would really appreciate your advises please.

Website is http://www.h-r-s.cz/
Using the Chrome and have OS X Yosemite version 10. 10. 5.

Screenshots here below:

0_1506689140455_Screen Shot 2017-09-29 at 14.36.06.png
0_1506689150236_Screen Shot 2017-09-29 at 14.34.30.png