TypeError: Cannot read property 'add' of undefined

[jusjus112]

• Your OS Linux Ubuntu - Webstorm 2021.1.3

• Node.js version v12.13.1.

• Vuesax version 4.0.1-alpha.25

• Browser version FireFox Developer Edition 91.0b3

• Which package manager did you use for the install? Used nuxt-create-app Using latest NuxtJS to create an app with.

• What did you do when it happened? I clicked the button and after it disappeared it thrown the error.

Created a notification with a vs-button, see code here: https://hastebin.com/emequkunam.xml.

• Steps to reproduce

  1. Create buttons with the code on the link at hastebin. (I used NuxtJS)
  2. Click the black button, a notification will pop up.
  3. After it is fading out, the error is thrown and the application gives an error.

• Full Error:

  
  TypeError: can't access property "add", el.classList is undefined
  setColor vuesax.js:18277
  handleIsVisible vuesax.js:25842
  VueJS 5
  handleIsVisible vuesax.js:25841
  VueJS 12
  close vuesax.js:25792
  notification vuesax.js:26065
  client.js:102
  _callee$ NuxtJS
  Babel 8
  VueJS 7
  handleIsVisible vuesax.js:25841
  VueJS 12
  close vuesax.js:25792
  notification vuesax.js:26065```

• Dependencies

  
  "dependencies": {
  "@nuxt/content": "^1.14.0",
  "@nuxtjs/axios": "^5.13.6",
  "bootstrap": "^5.0.2",
  "bootstrap-vue": "^2.21.2",
  "boxicons": "^2.0.7",
  "core-js": "^3.15.1",
  "express": "^4.17.1",
  "helmet": "^4.6.0",
  "nuxt": "^2.15.7",
  "ol": "^5.3.3",
  "vue": "^2.6.14",
  "vuelayers": "^0.11.36",
  "vuesax": "^4.0.1-alpha.25"
  },```