Newbe with Ubuntu and error message saying MySQL could not get started. Please check if MySQL installed properly

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KI5WFZ
Newbe with Ubuntu and error message saying MySQL could not get started. Please check if MySQL installed properly

i get this message:
2024-09-28T02:57:00.467848Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.39-0ubuntu0.22.04.1) starting as process 20120
2024-09-28T02:57:00.469761Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2024-09-28T02:57:00.469778Z 0 [Warning] [MY-013244] [Server] --collation-server: 'utf8mb3_bin' is a collation of the deprecated character set UTF8MB3. Please consider using UTF8MB4 with an appropriate collation instead.
2024-09-28T02:57:00.483576Z 0 [Warning] [MY-010075] [Server] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 550be9a3-7d45-11ef-ba44-b8ac6f6c6482.
2024-09-28T02:57:00.496573Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2024-09-28T02:57:00.496826Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2024-09-28T02:57:00.496867Z 0 [ERROR] [MY-010119] [Server] Aborting
2024-09-28T02:57:00.497502Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.39-0ubuntu0.22.04.1) (Ubuntu).

thanks in advance