My design became invisible

I was in the middle of building my design flow. then I added a note and wrote in it and tried to readjust it but the whole canvas started glitching and then everything disappeared from it. I could still run tests and all my variables and flow is there and functions, but I cannot see it. I tried clicking "S" and it returns me to the start but there is nothing, just an empty canvas, i tried zooming out, refreshing, exiting the tab and reloading... Nothing works... I do not know what to do... The screenshot shows a fully zoomed out canvas