your calibratio is way off.

The 'rippled' areas are where the print head is too close to the bed.

If you adjust the z-height/gap upwards in increments of 0.05mm you should be able to hit the sweet spot, where things stick to the bed but can also be removed.

Also manually level the bed.

Looking at the printer - yeah it's basically an ender 3 with a really weird frame.
So help with bed levelling and printing first layer - go look at so,me ender 3 'how'to's.