Okay, so here we go:
$ /usr/local/bin/sbfspot.3/SBFspot -v -nosql -nocsv -finq | grep -i time
Local Host Time: 09/04/2021 18:20:16
Plant Time : 09/04/2021 18:20:17 (+1 sec)
Last Time Set : 02/04/2021 05:55:03
Operation Time: 22527.23h
Feed-In Time : 21120.41h
Current Inverter Time: 09/04/2021 18:20:16
Inverter Wake-Up Time: 09/04/2021 07:03:40
Inverter Sleep Time : 09/04/2021 18:20:16
startTime = 606F7CE0 → 09/04/2021 00:00:00
startTime = 6065A7B0 → 01/04/2021 13:00:00
$ sudo systemctl status SBFspotUpload
● SBFspotUpload.service - SBFspot Upload Daemon
Loaded: loaded (/usr/local/bin/sbfspot.3/SBFspotUpload.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2021-04-04 14:34:24 CEST; 5 days ago
Main PID: 1245 (SBFspotUploadDa)
Tasks: 1 (limit: 2062)
CGroup: /system.slice/SBFspotUpload.service
└─1245 /usr/local/bin/sbfspot.3/SBFspotUploadDaemon -c /usr/local/bin/sbfspot.3/SBFspotUpload.cfg
Apr 04 14:34:24 otgwdomo systemd[1]: Started SBFspot Upload Daemon.
Apr 04 14:34:24 otgwdomo SBFspotUploadDaemon[1245]: SBFspotUploadDaemon Version 3.0.0
Apr 04 14:34:24 otgwdomo SBFspotUploadDaemon[1245]: Loglevel=1
Apr 04 14:34:24 otgwdomo SBFspotUploadDaemon[1245]: LogDir=/home/pi/smadata/logs/
$ journalctl|grep SBFspotUpload
Apr 04 14:08:43 otgwdomo SBFspotUploadDaemon[429]: SBFspotUploadDaemon Version 3.0.0
Apr 04 14:08:43 otgwdomo SBFspotUploadDaemon[429]: Loglevel=2
Apr 04 14:08:43 otgwdomo SBFspotUploadDaemon[429]: LogDir=/var/log/sbfspot.3/
Apr 04 14:16:25 otgwdomo sudo[736]: pi : TTY=pts/0 ; PWD=/home/pi/smadata/logs ; USER=root ; COMMAND=/usr/bin/find / -namee SBFspotUpload
Apr 04 14:16:30 otgwdomo sudo[738]: pi : TTY=pts/0 ; PWD=/home/pi/smadata/logs ; USER=root ; COMMAND=/usr/bin/find / -name SBFspotUpload
Apr 04 14:20:59 otgwdomo sudo[855]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3/SBFUploadDaemonOrg ; USER=root ; COMMAND=/bin/systemctl status SBFspotUpload
Apr 04 14:22:31 otgwdomo sudo[896]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/chown root:root SBFspotUploadDaemon
Apr 04 14:22:49 otgwdomo sudo[909]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl status SBFspotUpload
Apr 04 14:22:55 otgwdomo sudo[912]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl stop SBFspotUpload
Apr 04 14:22:55 otgwdomo SBFspotUploadDaemon[429]: Exit signal received.
Apr 04 14:22:55 otgwdomo systemd[1]: SBFspotUpload.service: Succeeded.
Apr 04 14:23:01 otgwdomo sudo[915]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl start SBFspotUpload
Apr 04 14:23:01 otgwdomo SBFspotUploadDaemon[918]: SBFspotUploadDaemon Version 3.0.0
Apr 04 14:23:01 otgwdomo SBFspotUploadDaemon[918]: Loglevel=2
Apr 04 14:23:01 otgwdomo SBFspotUploadDaemon[918]: LogDir=/var/log/sbfspot.3/
Apr 04 14:23:06 otgwdomo sudo[928]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl status SBFspotUpload
Apr 04 14:30:47 otgwdomo sudo[1142]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/nano SBFspotUpload.cfg
Apr 04 14:32:07 otgwdomo sudo[1166]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl stop SBFspotUpload
Apr 04 14:32:07 otgwdomo SBFspotUploadDaemon[918]: Exit signal received.
Apr 04 14:32:07 otgwdomo systemd[1]: SBFspotUpload.service: Succeeded.
Apr 04 14:32:13 otgwdomo sudo[1179]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl start SBFspotUpload
Apr 04 14:32:13 otgwdomo SBFspotUploadDaemon[1182]: SBFspotUploadDaemon Version 3.0.0
Apr 04 14:32:13 otgwdomo SBFspotUploadDaemon[1182]: Loglevel=1
Apr 04 14:32:13 otgwdomo SBFspotUploadDaemon[1182]: LogDir=/home/pi/smadata/logs/
Apr 04 14:32:16 otgwdomo sudo[1183]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl status SBFspotUpload
Apr 04 14:34:19 otgwdomo sudo[1239]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl stop SBFspotUpload
Apr 04 14:34:19 otgwdomo SBFspotUploadDaemon[1182]: Exit signal received.
Apr 04 14:34:19 otgwdomo systemd[1]: SBFspotUpload.service: Succeeded.
Apr 04 14:34:24 otgwdomo sudo[1242]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl start SBFspotUpload
Apr 04 14:34:24 otgwdomo SBFspotUploadDaemon[1245]: SBFspotUploadDaemon Version 3.0.0
Apr 04 14:34:24 otgwdomo SBFspotUploadDaemon[1245]: Loglevel=1
Apr 04 14:34:24 otgwdomo SBFspotUploadDaemon[1245]: LogDir=/home/pi/smadata/logs/
Apr 04 14:34:28 otgwdomo sudo[1246]: pi : TTY=pts/0 ; PWD=/usr/local/bin/sbfspot.3 ; USER=root ; COMMAND=/bin/systemctl status SBFspotUpload
Apr 09 19:06:56 otgwdomo sudo[17354]: pi : TTY=pts/0 ; PWD=/home/pi ; USER=root ; COMMAND=/bin/systemctl status SBFspotUpload
sqlite> Select * from vwinverters;
2120170067|SN: 2120170067|SB 3000HF-30|02.54.11.R|2021-04-09 19:10:07|84|6981|22161734|22528.1|21121.2|OK|Closed|31.6
Two configuration settings are important for correct uploading to PVOutput.org turn out to be fine.