Service Crashes after some time

[yelllowsin]

Hello, we were testing this exporter within some tender mint chains and we have noticed that it crashes on some after some time running with the error below:

Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]: sync.(*WaitGroup).Add(0xc0006306d4, 0xffffffffffffffff)
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]:         /opt/hostedtoolcache/go/1.16.5/x64/src/sync/waitgroup.go:74 +0x147
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]: sync.(*WaitGroup).Done(0xc0006306d4)
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]:         /opt/hostedtoolcache/go/1.16.5/x64/src/sync/waitgroup.go:99 +0x34
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]: main.ValidatorsHandler.func3(0xc0006306d4, 0xc0017a52c0, 0xc000d7ee00, 0xc0006306d0)
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]:         /home/runner/work/cosmos-exporter/cosmos-exporter/validators.go:209 +0x2e7
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]: created by main.ValidatorsHandler
Mar 22 16:26:15 val01-umee-t cosmos-exporter[1144781]:         /home/runner/work/cosmos-exporter/cosmos-exporter/validators.go:188 +0x1405
Mar 22 16:26:15 val01-umee-t systemd[1]: cosmos-exporter.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 22 16:26:15 val01-umee-t systemd[1]: cosmos-exporter.service: Failed with result 'exit-code'.

It is running with these parameters:

ExecStart=/usr/local/bin/cosmos-exporter --denom=uumee --denom-coefficient=1000000

Any insight why does this happen? It works for some time, like hours but eventually crashes.