Server Down LG T-mobile adb

Using Version...1.0.0.0060
Selected Model GT-I5508
Selected Task TMB Unlock(ADB)

Searching ADB device Please wait..
Device Detected...
SELinux := Permissive
model:= LG-H830
LG TMB Unlocking Started...
SU Version..2.79:SUPERSU
Device is Secure Rooted..uid=0
Reading Please Wait..
Please Wait while...
Please wait starting task...
Device Sn := LGH830c543c43
Device Imei := 356729074xxxxxx
Factory Ver := LGH830AT-00-V20a-TMO-US-NOV-07-2016-ARB01+0
Server Reply Error := ERR_BAD_IMEI OR SERVER DOWN TRY Again after few minutes..

Fail to check server...HYpRDkQhCMSuhAoKnysO9z/SGzaT0KQUVpMrTAwoGXgwhAuqpkstdLH70intAeiVtquRJ0dG0 pH7adpjmZs85Ovfs79fDsdPeuH3SMaVbZq+at8P
Send ASK Saved := LGH830c543c43.ask

!!! Success !!!!
Restart Phone if not auto...
Total Time Take...00:00:24
server down?????