ABAP Instance not available
there is no issue in the server it is up and running fine. since closing the ticket. 
rdvadm> sapcontrol -nr 00 -function GetProcessList 
 
08.06.2026 13:06:07 
GetProcessList 
OK 
name, description, dispstatus, textstatus, starttime, elapsedtime, pid 
disp+work, Dispatcher, GREEN, Running, Message Server connection ok, Dialog Queue time: 0.00 sec, 2026 05 27 01:58:25, 299:07:42, 39420 
igswd_mt, IGS Watchdog, GREEN, Running, 2026 05 27 01:58:25, 299:07:42, 39421