Error message: Sv_startmodel index not precached

[Quaky Teh Ducky]

Hi guys im a here and i need help on this:

When i was playing YPOD, a quake mod that makes quake look doom, and when i was going to exit the level zoom 6, this message appeared:

''Sv_startmodel index not precached.''

so i came to see what would be the solution on the original website, and it didnt work

Please i need help here :c

[R00k]

the game couldnt find one of the required models.