Hello Felix,
Thanks for such a prompt reply. I checked it and found that a repeating error that says:
[02-24-19_06:25:29.564] [ERROR] POST ERROR: ENOENT: no such file or directory, open '/home/pi/gateway/data/db/0099_Solar Radiation (W/m2).bin'.
There are binary files for all other remaining metrics but couldn't find the file for that metric to delete.
Thanks