I tried with another card with the default and it is starting, but every ~30 seconds there is a restart.
** Restart **
SD initialized.
10/23/23 09:48:59z Real Time Clock is running. Unix time 1698054539
10/23/23 09:48:59z Reset reason: Exception
10/23/23 09:48:59z Trace: 10:50, 25:10, 25:10, 25:10, 25:10, 25:12, 25:13, 25:13, 25:13, 25:17, 25:13, 25:13, 25:18, 25:19, 25:20, 10:52, 10:54, 10:56, 25:20, 25:40, 25:41, 25:42, 25:41, 25:50, 25:51, 25:53, 25:54, 25:60, 25:61, 25:62, 25:61, 25:64
10/23/23 09:48:59z ESP8266 ID: 6902608, RTC PCF8523 (68)
10/23/23 09:48:59z IoTaWatt 4.x, Firmware version 02_08_03
10/23/23 09:48:59z SPIFFS mounted.
10/23/23 09:48:59z Local time zone: +0:00
10/23/23 09:48:59z device name: IotaWatt
10/23/23 09:48:59z HTTP server started
10/23/23 09:48:59z timeSync: service started.
10/23/23 09:48:59z statService: started.
10/23/23 09:48:59z dataLog: service started.
10/23/23 09:48:59z dataLog: Last log entry 10/23/23 09:48:55
10/23/23 09:48:59z historyLog: service started.
10/23/23 09:48:59z historyLog: Last log entry 10/23/23 09:48:00
10/23/23 09:49:03z WiFi connected. SSID=pinguNOTwlan, IP=192.168.30.74, channel=6, RSSI -30db
10/23/23 09:49:03z Updater: service started. Auto-update class is MINOR
10/23/23 09:49:04z Updater: Auto-update is current for class MINOR.
** Restart **
SD initialized.
10/23/23 09:49:34z Real Time Clock is running. Unix time 1698054574
10/23/23 09:49:34z Reset reason: Exception
10/23/23 09:49:34z Trace: 10:50, 25:10, 25:10, 25:10, 25:10, 25:12, 25:13, 25:13, 25:13, 25:17, 25:13, 25:13, 25:18, 25:19, 25:20, 10:52, 10:54, 10:56, 25:20, 25:40, 25:41, 25:42, 25:41, 25:50, 25:51, 25:53, 25:54, 25:60, 25:61, 25:62, 25:61, 25:64
10/23/23 09:49:34z ESP8266 ID: 6902608, RTC PCF8523 (68)
10/23/23 09:49:34z IoTaWatt 4.x, Firmware version 02_08_03
10/23/23 09:49:34z SPIFFS mounted.
10/23/23 09:49:34z Local time zone: +0:00
10/23/23 09:49:34z device name: IotaWatt
10/23/23 09:49:34z HTTP server started
10/23/23 09:49:34z timeSync: service started.
10/23/23 09:49:34z statService: started.
10/23/23 09:49:34z dataLog: service started.
10/23/23 09:49:34z dataLog: Last log entry 10/23/23 09:49:30
10/23/23 09:49:34z historyLog: service started.
10/23/23 09:49:34z historyLog: Last log entry 10/23/23 09:49:00
10/23/23 09:49:38z WiFi connected. SSID=pinguNOTwlan, IP=192.168.30.74, channel=6, RSSI -28db
10/23/23 09:49:38z Updater: service started. Auto-update class is MINOR
10/23/23 09:49:39z Updater: Auto-update is current for class MINOR.