how to restrict the player from moving out of a colored Hexagon and not go through the walls?

Im making a Hexagon world, but i have stumbled some issues that the Player can go through the world's walls with no problems at all. I also made a -click to move- script with the help from this tutorial here >https://www.youtube.com/watch?v=e14JB5Ei6mA&t=279s<. did i programm the Collision hitbox wrongly? or is it cause of this script that i use was invalid? or is it cause i chose Hexagon tile map that is the issue?

Thank you to Everyone who tried to help or helped me with this