pref: 优化计划任务错误显示

[ssongliu]

Refs #4736

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

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[f2c-ci-robot]

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[wanghe-fit2cloud]

/lgtm

[wanghe-fit2cloud]

/approve