[DorCoMaNdO]

Try renaming your "plugins" folder to "plugins-backup", extract the plugins folder of the sourcemod zip again, install SM_Hosties, without any other mods (not even the third-party lastrequests that comes with SM_Hosties) and check if the server crashes, if it does, there is something that was installed incorrectly or the sourcemod build is corrupted, try another build and check again.