D.J. Skull Hat

so i just got a new server and when me and my friends join we cant build or pull up the build menu and worst off all we can see right thru the map walls. i could really use some help with this and theres a huge yellow error list on my screen when i join that doesnt go away so please help. :confused1:

how do i get the correct ip

well its easy ope it up then put the material folder in your garrysmod/garrysmod folder

thnx but ive already done both of those things i also went to my firewall and let it thru and it still wont work now my server works but no one can join

i need help ive made a dedicated server and i can join it but nobody i give the ip to can ive treid and tried but he still cant join so how come and how can i fix it