---
title: Troubleshoot Tiger Cloud | Tiger Data Docs
description: Diagnose and resolve common issues with Tiger Cloud services
---

## Cannot create another database

```
ERROR:  tsdb_admin: database <DB_NAME> is not an allowed database name
HINT:  Contact your administrator to configure the "tsdb_admin.allowed_databases"
```

Each Tiger Cloud service hosts a single PostgreSQL instance called `tsdb`. You see this error when you try to create an additional database in a service. If you need another database, [create a new service](/docs/get-started/quickstart/create-service/index.md).

## User permissions do not allow chunks to be converted to columnstore or rowstore

```
ERROR:  must be owner of hypertable "HYPERTABLE_NAME"
```

You might get this error if you attempt to compress a chunk into the columnstore, or decompress it back into rowstore with a non-privileged user account. To compress or decompress a chunk, your user account must have permissions that allow it to perform `CREATE INDEX` on the chunk. You can check the permissions of the current user with this command at the `psql` command prompt:

```
\dn+ <USERNAME>
```

To resolve this problem, grant your user account the appropriate privileges with this command:

```
GRANT PRIVILEGES
    ON TABLE <TABLE_NAME>
    TO <ROLE_TYPE>;
```

For more information about the `GRANT` command, see the [PostgreSQL documentation](https://www.postgresql.org/docs/current/sql-grant.html).