Have had this issue since updating server CUP files yesterday.. it has killed our server.. I have reinstalled the trio of updates several times, from 2 different PCs to ensure not a corrupted file... rpt log message:
Addon 'pja310' requires addon 'CUP_Worlds'
pja310 (otherwise known as G.O.S. Al Rayak) is a map by GOS_Makhno, which is dependant on CUP_terrains to render Arma2 objects that are within the map.
map link: pja310