I'm lost and a newbie. (I'm too new to Linux) Here is the last (in part) of the err log.
Thanks for you patience
W0OOW@farmpond.net

2023-06-01T20:56:08.630773Z 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.
2023-06-01T20:56:08.630786Z 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.
2023-06-01T20:56:08.636599Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2023-06-01T20:56:08.636720Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2023-06-01T20:56:08.636738Z 0 [ERROR] [MY-010119] [Server] Aborting
2023-06-01T20:56:08.637215Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.33-0ubuntu0.22.04.2) (Ubuntu).
2023-06-02T00:29:22.310002Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.33-0ubuntu0.22.04.2) starting as process 3275
2023-06-02T00:29:22.311512Z 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.
2023-06-02T00:29:22.311524Z 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.
2023-06-02T00:29:22.318703Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2023-06-02T00:29:22.319039Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2023-06-02T00:29:22.319088Z 0 [ERROR] [MY-010119] [Server] Aborting
2023-06-02T00:29:22.319678Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.33-0ubuntu0.22.04.2) (Ubuntu).
2023-06-02T00:30:43.160051Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.33-0ubuntu0.22.04.2) starting as process 3309
2023-06-02T00:30:43.161515Z 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.
2023-06-02T00:30:43.161527Z 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.
2023-06-02T00:30:43.167267Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2023-06-02T00:30:43.167595Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2023-06-02T00:30:43.167642Z 0 [ERROR] [MY-010119] [Server] Aborting
2023-06-02T00:30:43.168214Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.33-0ubuntu0.22.04.2) (Ubuntu).