Joomla Website goes down when making changes in administrator -- 2

Job ID: 32666895

Budget: $30 – $250 USD

Hello,

Every time I make changes in administrator, website will go down, there may be missing important files due to an update or so.
See attachments.

I was making some changes, extension updates and it stopped working. https://www.accessscanning.com/
I contact my website host and they did not find the issue.

I will need someone to inspect and find the error, website needs to be up all the times when trying to find the error. After fixed, I should be able to make changes in administrator.

Reply saying "I checked" to make sure you understand this project.
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