[BUG] text_log table config crashes Clickhouse

[ultraheroe]

Description

In newer versions if the level param of text_log config is not setted properly, ClickHouse Server won't start.

Steps to Reproduce

1. Setup whatever config you want for text_log
2. Try to start / install ClickHouse

Expected behavior:
Run / Install ClickHouse properly

Actual behavior:
ClickHouse do not start

Reproduces how often:
Always when you set up text_log config

Environment

• The release version/s you are using: 3.5.0
• OS: Debian

Additional Information

The problem is in the template, level can't be set and always is empty.