Here:
$ journalctl -u systemd-swap
-- Logs begin at Thu 2020-11-05 21:51:31 EET, end at Thu 2020-11-05 23:20:29 EET. --
Νοε 05 22:57:35 Ristvakbaen-L systemd[1]: Starting Manage swap spaces on zram, files and partitions....
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Removing working directory...
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Removing files in /var/lib/systemd-swap/swapfc/...
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Zswap: backup current configuration: start
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Zswap: backup current configuration: complete
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Zswap: set new parameters: start
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Zswap: Enable: 1, Comp: lz4, Max pool %: 25, Zpool: zbud
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Zswap: set new parameters: complete
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: Writing destroy info...
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: swapD: pick up devices from systemd-gpt-auto-generator
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: INFO: swapD: searching swap devices
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: Traceback (most recent call last):
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: File "/usr/bin/systemd-swap", line 904, in <module>
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: main()
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: File "/usr/bin/systemd-swap", line 892, in main
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: start()
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: File "/usr/bin/systemd-swap", line 733, in start
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: swap_fc = SwapFc(config, sem)
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: File "/usr/bin/systemd-swap", line 156, in __init__
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: self.assign_config(config)
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: File "/usr/bin/systemd-swap", line 289, in assign_config
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: self.swapfc_frequency = config.get("swapfc_frequency", int)
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: File "/usr/bin/systemd-swap", line 103, in get
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: return as_type(self.config[key])
Νοε 05 22:57:35 Ristvakbaen-L systemd-swap[940]: ValueError: invalid literal for int() with base 10: '1s'
Νοε 05 22:57:35 Ristvakbaen-L systemd[1]: systemd-swap.service: Main process exited, code=exited, status=1/FAILURE
Νοε 05 22:57:35 Ristvakbaen-L systemd[1]: systemd-swap.service: Failed with result 'exit-code'.
Νοε 05 22:57:35 Ristvakbaen-L systemd[1]: Failed to start Manage swap spaces on zram, files and partitions..