hi, i have this error console please what happen

[isayam]

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vue.esm.js?65d7:628 [Vue warn]: Do not use built-in or reserved HTML elements as component id: switch
vue.esm.js?65d7:9077 Download the Vue Devtools extension for a better development experience:
https://github.com/vuejs/vue-devtools
vue.esm.js?65d7:9088 You are running Vue in development mode.
Make sure to turn on production mode when deploying for production.
See more tips at https://vuejs.org/guide/deployment.html
createError.js?f777:16 Uncaught (in promise) Error: timeout of 1000ms exceeded
at createError (createError.js?f777:16)
at XMLHttpRequest.handleTimeout (xhr.js?14ed:95)
createError.js?f777:16 Uncaught (in promise) Error: timeout of 1000ms exceeded
at createError (createError.js?f777:16)
at XMLHttpRequest.handleTimeout (xhr.js?14ed:95)
createError.js?f777:16 Uncaught (in promise) Error: timeout of 1000ms exceeded
at createError (createError.js?f777:16)
at XMLHttpRequest.handleTimeout (xhr.js?14ed:95)
2
createError.js?f777:16 Uncaught (in promise) Error: timeout of 1000ms exceeded
at createError (createError.js?f777:16)
at XMLHttpRequest.handleTimeout (xhr.js?14ed:95)