A refresh fixes most of these. If it doesn't, work through the checks below, and if it's still stuck, email hello@oba.uk and we'll sort it out.
Try these first
Refresh the page.
Check your connection by opening another website.
Update your browser and restart it.
Open the lesson in a private window, or in a different browser. If it works there, a browser extension is the likely cause.
If the video stays blank
Lesson videos play from Vimeo, inside the lesson. Ad blockers and privacy extensions sometimes block the Vimeo player, and some work and school networks block video sites altogether. Allow player.vimeo.com in your extension, or try another network.
The written notes under the video still load, so you can keep reading while you sort it.
Messages you might see
"That did not send. Check your connection and press Check again, nothing is lost." Your connection dropped as you answered. Reconnect and press Check again.
"Log in to carry on." You have been logged out. Refresh the page, log in, and you'll come straight back to the lesson.
"Written notes and practice for this lesson are being added." Nothing is wrong: this lesson is video only for now.
"Being written" beside a lesson. It isn't ready yet, so it doesn't open. The lessons that are ready open straight away.
"Something went wrong at our end." Wait a moment and try again. If it keeps happening, tell us.
You land on the courses page instead of your lesson. You're probably logged in with a different email from the one you bought with. Log out, then log in with that one.
Still stuck? Tell us
Email hello@oba.uk or call 0800 060 8823 (Mon to Fri, 9am to 5pm UK time). We reply to emails within one working day. These details help us fix it first time:
The course and the lesson.
Your device and browser, for example an iPhone with Safari.
What you expected, and what happened instead.
A screenshot, if you can.