Help with unity pixel snap

i used tiled2unity
whithout pixel snap random lines appear when my charaters walking
but when I turned on pixel snap this happens

is there any ways to remove all lines that appear on my map?

Seams were a common issue with Tiled2Unity. The real fix required you to fix up your art just so.

This is something that was resolved with SuperTiled2Unity. Support on regular Tiled2Unity ended over a year ago and I don’t think it work with the latest Unity versions anyhow so I urge you to make the change.