Docker Container boot failed after update and rollback

Oh thanks for the fast response.
Indead there was a permission problem with the backup folder.
i did a chown -R 999:999 on the sonar volumes at and atleast the container is booting again but sadly now sonar wants to migrate the database (whyever) as well. Like in the 8.2 image.

He failed with

Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "rules_parameters_unique"
sonarqube_1                          |   Detail: Key (rule_id, name)=(456, minimumBranchCoverageRatio) already exists.
sonarqube_1                          | 	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2497)
sonarqube_1                          | 	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2233)
sonarqube_1                          | 	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:310)
sonarqube_1                          | 	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:446)
sonarqube_1                          | 	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:370)
sonarqube_1                          | 	at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:149)
sonarqube_1                          | 	at org.postgresql.jdbc.PgPreparedStatement.execute(PgPreparedStatement.java:138)
sonarqube_1                          | 	at org.apache.commons.dbcp2.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:94)
sonarqube_1                          | 	at org.apache.commons.dbcp2.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:94)
sonarqube_1                          | 	at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:47)
sonarqube_1                          | 	at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74)
sonarqube_1                          | 	at org.apache.ibatis.executor.ReuseExecutor.doUpdate(ReuseExecutor.java:52)
sonarqube_1                          | 	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)
sonarqube_1                          | 	at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)
sonarqube_1                          | 	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197)
sonarqube_1                          | 	... 29 common frames omitted

and

db_1                                 | 2020-03-10 13:55:22.295 UTC [128] ERROR:  duplicate key value violates unique constraint "rules_parameters_unique"
db_1                                 | 2020-03-10 13:55:22.295 UTC [128] DETAIL:  Key (rule_id, name)=(456, minimumBranchCoverageRatio) already exists.
db_1                                 | 2020-03-10 13:55:22.295 UTC [128] STATEMENT:  insert into rules_parameters (
db_1                                 | 	      rule_id,
db_1                                 | 	      name,
db_1                                 | 	      param_type,
db_1                                 | 	      default_value,
db_1                                 | 	      description
db_1                                 | 	    )
db_1                                 | 	    values (
db_1                                 | 	      $1,
db_1                                 | 	      $2,
db_1                                 | 	      $3,
db_1                                 | 	      $4,
db_1                                 | 	      $5
db_1                                 | 	    )
db_1                                 | 	RETURNING "id"

Any ideas here?
Thanks