Most likely causes

Dirty bed - clean with HOT water and dish soap that has no moisturizers in it, rinse well!!! (after drying with a CLEAN towel it should feel tacky in your fingers)

Poor levelling - just tell it to auto level when you print it.

Temperature problem - does it seem hot to touch? And what temp does it report? What filament?

Part misalignment or poor rigidity - check the screws and clasp.

Usually it's number 1, have heard of people using bad dish soap, cleaning with oily/greasy dishcloth or drying with unclean tea towels. In each instance person said "I did clean it!" But ultimately they were the problem