iMac2020 stuck at login screen

Code Block Mar 12 04:14:34 zimac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.1D000000-0500-0000-0000-000000000000[1819]): Service exited due to SIGKILL | sent by mds[1475]
Mar 12 04:14:35 zimac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.10000000-0400-0000-0000-000000000000[1812]): Service exited due to SIGKILL | sent by mds[1475]
Mar 12 04:14:38 zimac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0200-0000-0000-000000000000[1823]): Service exited due to SIGKILL | sent by mds[1475]
Mar 12 04:14:38 zimac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.12000000-0400-0000-0000-000000000000[1816]): Service exited due to SIGKILL | sent by mds[1475]
Mar 12 09:23:09 zimac syslogd[61]: ASL Sender Statistics
Mar 12 09:23:18 zimac UserEventAgent[62]: assertion failed: 20E5196f: com.apple.time + 13166 [D70FDA33-2395-31CA-A8A1-CBDDF34388F8]: 0xffffffffe00002f0
Mar 12 09:23:18 zimac UserEventAgent[62]: assertion failed: 20E5196f: com.apple.alarm + 6382 [73FA527C-5ECF-32A0-8E71-F941D17979D4]: 0xffffffffe00002f0
Mar 12 09:23:51 zimac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.12000000-0500-0000-0000-000000000000[1827]): Service exited due to SIGKILL | sent by mds[1475]
Mar 12 09:24:01 zimac UserEventAgent[380]: assertion failed: 20E5196f: com.apple.alarm + 6382 [73FA527C-5ECF-32A0-8E71-F941D17979D4]: 0xffffffffe00002f0
Mar 12 09:24:39 ziMac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.12000000-0600-0000-0000-000000000000[1828]): Service exited due to SIGKILL | sent by mds[1475]
--- the problem start from here----
Mar 12 18:55:59 ziMac syslogd[61]: ASL Sender Statistics
Mar 12 18:56:09 ziMac UserEventAgent[62]: assertion failed: 20E5196f: com.apple.alarm + 6382 [73FA527C-5ECF-32A0-8E71-F941D17979D4]: 0xffffffffe00002f0
Mar 12 18:56:36 ziMac com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.system): entering bootstrap mode
Mar 12 18:56:36 ziMac com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.system): exiting bootstrap mode
Mar 12 18:56:51 ziMac UserEventAgent[62]: assertion failed: 20E5196f: com.apple.time + 13166 [D70FDA33-2395-31CA-A8A1-CBDDF34388F8]: 0xffffffffe00002f0
Mar 12 18:56:51 ziMac UserEventAgent[380]: assertion failed: 20E5196f: com.apple.alarm + 6382 [73FA527C-5ECF-32A0-8E71-F941D17979D4]: 0xffffffffe00002f0
Mar 12 18:56:54 zimac timed[105]: settimeofday({0x604b48f6,0x52dcd}) == 0
Mar 12 18:56:54 zimac remindd[1844]: objc[1844]: Class REMCDChangeTrackingState is implemented in both /System/Library/PrivateFrameworks/ReminderKit.framework/Versions/A/ReminderKit and /usr/libexec/remindd. One of the two will be used. Which one is undefined.
Mar 12 18:56:52 zimac timed[105]: settimeofday({0x604b48f4,0x18b19}) == 0
Mar 12 18:56:53 zimac syncdefaultsd[1846]: objc[1846]: Class SYDClient is implemented in both /System/Library/PrivateFrameworks/SyncedDefaults.framework/Versions/A/SyncedDefaults and /System/Library/PrivateFrameworks/SyncedDefaults.framework/Support/syncdefaultsd. One of the two will be used. Which one is undefined.
Mar 12 18:56:53 zimac syncdefaultsd[1846]: objc[1846]: Class SYDJournal is implemented in both /System/Library/PrivateFrameworks/SyncedDefaults.framework/Versions/A/SyncedDefaults and /System/Library/PrivateFrameworks/SyncedDefaults.framework/Support/syncdefaultsd. One of the two will be used. Which one is undefined.
Mar 12 18:57:26 zimac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0300-0000-0000-000000000000[1843]): Service exited due to SIGKILL | sent by mds[1475]
Mar 12 18:58:55 localhost bootlog[0]: BOOT_TIME 1615546735 252838
Mar 12 18:59:03 localhost syslogd[61]: Configuration Notice:
	ASL Module "com.apple.cdscheduler" claims selected messages.
	Those messages may not appear in standard system log files or in the ASL database.
Mar 12 18:59:03 localhost syslogd[61]: Configuration Notice:
	ASL Module "com.apple.install" claims selected messages.
	Those messages may not appear in standard system log files or in the ASL database.