You go to your website… and instead of your page, you see a message with a number.
It is not a great feeling.
Before you assume something has gone badly wrong, most of these errors are quite common. They look technical, but they are often simple once you know what they mean.
I will walk you through the main ones and what to do next.

First, a bit of reassurance
An error does not always mean your website is broken.
In many cases it is:
- temporary
- caused by a small change
- something that will resolve itself
So try not to jump straight into fixing things before you know what you are looking at.
If you are unsure where to start with your website in general, this guide on
👉 https://chiarabroom.co.uk/handover/tips-for-managing-your-own-website/ can help you feel more in control.
404 Error – Page Not Found
This is one of the most common.
It simply means the page cannot be found.
That might be because:
- the page was deleted
- the link is incorrect
- the page URL has changed
What to do:
- check the web address carefully
- try finding the page from your homepage
- if it is your own site, check if the page has been moved or renamed
If it is an important page, it is worth setting up a proper redirect so visitors are not left at a dead end.
503 Error – Service Unavailable
This usually means your website is temporarily unavailable.
It can happen if:
- your hosting is under pressure
- there is maintenance happening
- the server cannot handle the request right now
What to do:
- wait a few minutes
- refresh the page
- check your hosting provider if you have access
If it carries on or happens regularly, it is often linked to hosting quality. This guide may help:
👉 https://chiarabroom.co.uk/handover/the-importance-of-choosing-a-reliable-web-host-for-your-website/
500 Error – Internal Server Error
This one is less clear.
It means something has gone wrong behind the scenes, but it does not say exactly what.
Common causes include:
- plugin issues
- updates that have not completed properly
- small technical errors
What to do:
- refresh the page
- think about anything you have recently changed
If you have just made updates, it is worth checking you are following a safe process:
👉 https://chiarabroom.co.uk/handover/how-to-safely-backup-update-your-wordpress-website/
Try not to start switching things on and off without a plan. It can make it harder to trace the issue.
403 Error – Forbidden
This means access is being blocked.
Your website understands the request, but it will not allow it.
This can be down to:
- permissions
- security settings
- login restrictions
You can try:
- logging in again
- using a different browser
- clearing your cache
If you are locked out completely, this may help:
👉 https://chiarabroom.co.uk/handover/help-i-forgot-my-wordpress-login/
“Your connection is not private”
This warning relates to your website security.
It usually means there is an issue with your SSL certificate.
If you see this on your own website, it does need attention.
You can also read more about related warnings here:
👉 https://chiarabroom.co.uk/problem-solving/fixing-the-your-connection-not-private-warning-on-your-website/
What to do before you worry
Before assuming the worst, go through this quick check:
- refresh the page
- try another device
- check your internet connection
- wait a few minutes
- clear your browser cache (this can fix more than you think):
👉 https://chiarabroom.co.uk/problem-solving/how-to-clear-browser-cache/
Quite often, the issue is smaller than it first looks.
When to ask for help
You do not need to work everything out on your own.
It is worth getting support if:
- the error does not go away
- your whole website is affected
- you are unsure what caused it
Who should you contact?
This depends on the type of issue, and who manages what on your website.
- Your hosting provider
If your site is down, slow, or showing a 503 / 500 error, your host is often the first place to check. They can see if the server is having problems. - Your web designer or developer
If something has broken after a change, update, or redesign, your designer can usually spot the issue quickly and fix it properly. - Your website manager or care plan provider
If you are on a care plan, this is exactly what it is there for. Ongoing support means you do not have to figure it out alone.
If you are not sure who to contact, start with the person who looks after your website day to day. They can usually point you in the right direction or handle it for you.
👉 Find out about getting a care plan for your site: https://chiarabroom.co.uk/website-management/