Electron-vue app is normal on ubuntu 14.04,18.04 prompts NavigatorUserMediaError.

app, made with electron-vue works well on ubuntu 14.04.The same username and password login page
becomes what it looks like on ubuntu 18.04., yarn run dev
console prompt: NavigatorUserMediaError DeviceNotFound Error

Jun.19,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1ea0eaf-478db.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ea0eaf-478db.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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