what does this mean? and how do i fix it?

Jonny2CoolBoss

L1: Registered
Jul 3, 2019
3
0
Screenshot (11).png
 

DrSquishy

we've all had better times to die
aa
Feb 10, 2017
1,314
982
Where are you trying to open hammer from?The sourceSDK has been broken for a long time, you need to open it from the /Team Fortress 2/bin/ folder