Unable to start grafana on redhat 7.6

Grafana Installation
1

I installed grafana on redhat 7.6
if I review the grafana.log it only said:
t=2019-01-08T12:41:59-0500 lvl=info msg=“App mode production” logger=settings
t=2019-01-08T12:41:59-0500 lvl=info msg=“Writing PID file” logger=server path=/v
ar/run/grafana/grafana-server.pid pid=11245
t=2019-01-08T12:41:59-0500 lvl=info msg=“Initializing DB” logger=sqlstore dbtype
=sqlite3
t=2019-01-08T12:41:59-0500 lvl=info msg=“Starting DB migration” logger=migrator
t=2019-01-08T12:41:59-0500 lvl=info msg=“Executing migration” logger=migrator id
=“copy data account to org”
t=2019-01-08T12:41:59-0500 lvl=info msg=“Skipping migration condition not fulfil
led” logger=migrator id=“copy data account to org”
t=2019-01-08T12:41:59-0500 lvl=info msg=“Executing migration” logger=migrator id
=“copy data account_user to org_user”
t=2019-01-08T12:41:59-0500 lvl=info msg=“Skipping migration condition not fulfil
led” logger=migrator id=“copy data account_user to org_user”
t=2019-01-08T12:41:59-0500 lvl=info msg=“Starting plugin search” logger=plugins
t=2019-01-08T12:41:59-0500 lvl=info msg=“Initializing Alerting” logger=alerting.
engine
t=2019-01-08T12:41:59-0500 lvl=info msg=“Initializing CleanUpService” logger=cle
anup
t=2019-01-08T12:41:59-0500 lvl=info msg=“Initializing Stream Manager”
t=2019-01-08T12:41:59-0500 lvl=info msg=“Initializing HTTP Server” logger=http.s
erver address=127.0.0.1:3000 protocol=http subUrl=/grafana socket=

2

I am also facing the grafana start issue with redhat
t=2019-12-03T07:21:59-0500 lvl=info msg=“Connecting to DB” logger=sqlstore dbtype=mysql
t=2019-12-03T07:21:59-0500 lvl=info msg=“Starting DB migration” logger=migrator
t=2019-12-03T07:21:59-0500 lvl=info msg=“Executing migration” logger=migrator id=“add unique index user.login”
t=2019-12-03T07:21:59-0500 lvl=eror msg=“Executing migration failed” logger=migrator id=“add unique index user.login” error=“Error 1072: Key column ‘login’ doesn’t exist in table”
t=2019-12-03T07:21:59-0500 lvl=eror msg=“Exec failed” logger=migrator error=“Error 1072: Key column ‘login’ doesn’t exist in table” sql=“CREATE UNIQUE INDEX UQE_user_login ON user (login);”
t=2019-12-03T07:21:59-0500 lvl=eror msg=“Server shutdown” logger=server reason=“Service init failed: Migration failed err: Error 1072: Key column ‘login’ doesn’t exist in table”
t=2019-12-03T12:04:53-0500 lvl=warn msg="[Removed] Session setting was removed in v6.2, use remote_cache option instead" logger=settings
t=2019-12-03T12:04:53-0500 lvl=info msg=“Starting Grafana” logger=server version=6.3.5 commit=67bad72 branch=HEAD compiled=2019-09-02T05:34:49-0400

how to fix this issue. I am new to grafana, please help me to fix this migration issues

Do we need to update migration_logs (while going thru multiple thread this is what i understood)
if yes, where is the migration_log table do we need to manullay update it