ulozit block nefunguje

Zdravim

I hope it’s ok to write in English. the save blok function has stopped working on my website. Sylektis.space

I   get the message  „Could not save the block as favourite, please try again“

I have cleared my Firefox history (for 1 day). It was working fine until now?

Could  you  please let me know soon? I cannot continue building my website  until I can copy blocks.

Thank you