Failed to set memory limit to 0 bytes

Hi, I’m just learning to use matomo, but when I setup a cron to run the archive log, I got the following error, how can I fix it? please give me a help, thanks!
The following is the error message:


INFO [2023-03-22 00:40:01] 104 ---------------------------
INFO [2023-03-22 00:40:01] 104 INIT
INFO [2023-03-22 00:40:01] 104 Running Matomo 4.14.1 as Super User
INFO [2023-03-22 00:40:01] 104 ---------------------------
INFO [2023-03-22 00:40:01] 104 NOTES
INFO [2023-03-22 00:40:01] 104 - Async process archiving supported, using CliMulti.
INFO [2023-03-22 00:40:01] 104 - Reports for today will be processed at most every 60 seconds. You can change this value in Matomo UI > Settings > General Settings.
INFO [2023-03-22 00:40:01] 104 - Archiving was last executed without error 25s ago.
INFO [2023-03-22 00:40:01] 104 ---------------------------
INFO [2023-03-22 00:40:01] 104 START
INFO [2023-03-22 00:40:01] 104 Starting Matomo reports archiving…
INFO [2023-03-22 00:40:01] 104 Start processing archives for site 1.
INFO [2023-03-22 00:40:01] 104 Will invalidate archived reports for today in site ID = 1’s timezone (2023-03-21 00:00:00).
INFO [2023-03-22 00:40:01] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[16598],“nb_visits”:5}’
INFO [2023-03-22 00:40:01] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[16603],“nb_visits”:5}’
INFO [2023-03-22 00:40:02] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[16608],“nb_visits”:5}’
INFO [2023-03-22 00:40:02] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[5506],“nb_visits”:5}’
INFO [2023-03-22 00:40:02] 104 Finished archiving for site 1, 4 API requests, Time elapsed: 1.416s [1 / 2 done]
INFO [2023-03-22 00:40:02] 104 Start processing archives for site 2.
INFO [2023-03-22 00:40:02] 104 Will invalidate archived reports for today in site ID = 2’s timezone (2023-03-21 00:00:00).
INFO [2023-03-22 00:40:03] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[16613],“nb_visits”:28}’
INFO [2023-03-22 00:40:03] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[16618],“nb_visits”:28}’
INFO [2023-03-22 00:40:03] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[16623],“nb_visits”:28}’
INFO [2023-03-22 00:40:04] 104 ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0
{“idarchives”:[5511],“nb_visits”:28}’
INFO [2023-03-22 00:40:04] 104 Finished archiving for site 2, 4 API requests, Time elapsed: 1.400s [2 / 2 done]
INFO [2023-03-22 00:40:04] 104 Done archiving!
INFO [2023-03-22 00:40:04] 104 ---------------------------
INFO [2023-03-22 00:40:04] 104 SUMMARY
INFO [2023-03-22 00:40:04] 104 Processed 0 archives.
INFO [2023-03-22 00:40:04] 104 Total API requests: 8
INFO [2023-03-22 00:40:04] 104 done: 8 req, 2831 ms, 8 errors.
INFO [2023-03-22 00:40:04] 104 Time elapsed: 2.831s
INFO [2023-03-22 00:40:04] 104 ---------------------------
INFO [2023-03-22 00:40:04] 104 SCHEDULED TASKS
INFO [2023-03-22 00:40:04] 104 Starting Scheduled tasks…
INFO [2023-03-22 00:40:04] 104 done
INFO [2023-03-22 00:40:04] 104 ---------------------------
INFO [2023-03-22 00:40:04] 104 ---------------------------
INFO [2023-03-22 00:40:04] 104 SUMMARY OF ERRORS
INFO [2023-03-22 00:40:04] 104 Error: Error unserializing the following response from ?module=API&method=CoreAdminHome.archiveReports&idSite=1&period=day&date=2023-03-21&format=json&trigger=archivephp: ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0 {“idarchives”:[16598],“nb_visits”:5}’
INFO [2023-03-22 00:40:04] 104 Error: Error unserializing the following response from ?module=API&method=CoreAdminHome.archiveReports&idSite=1&period=week&date=2023-03-20&format=json&trigger=archivephp: ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0 {“idarchives”:[16603],“nb_visits”:5}’
INFO [2023-03-22 00:40:04] 104 Error: Error unserializing the following response from ?module=API&method=CoreAdminHome.archiveReports&idSite=1&period=month&date=2023-03-01&format=json&trigger=archivephp: ‘PHP Warning: Failed to set memory limit to 0 bytes (Current memory usage is 2097152 bytes) in Unknown on line 0 {“idarchives”:[16608],“nb_visits”:5}’