Invalid query: MySQL server has gone away<br><b>Query: </b>SELECT IDNode FROM estructura_info WHERE NSDiffer = '' and NSLevel >= 1 and ( 1=0  or (Path like  '001800016728%'  and NSLevel = 3 ) or (Path like  '00180001%'  and NSLevel = 2 ) or (Path like  '0018%'  and NSLevel = 1 ) )  and (es_copia_de = 0 or es_copia_de = -1)   order by Path DESC