Hi Adarsh,
Thanks. You have a very big log segment for your MIS database (around 14Gb). I don't know since when the error 1105 was returned (only last Monday?) but if it is from some days ago it could be possible that more transactions were waiting for more log space. At this point I would say that the best for now is to get increased the log segment of MIS database and to do that you'll have to increase your MIS_log_001 device that actually has 2Mb left (the device can be shrinked later) and then you'll be able to extend your MIS database log segment using that device. After that you should be able to log into your system to check processes from SM50.
So please run this mentioned by Kimon previously (or using DBACockpit as mentioned previously too):
use master
go
disk resize name=MIS_log_001,size='1000M'
go
alter database MIS log on MIS_log_001='1000M'
go
Regards,
Victoria.