If you're having difficulties logging into the forum, you may have to "clear the cache" on your browser and then go to
www.cyclekartsgb.com.
This gets rid of out of date information that might be confusing your computer and the way it's connecting to the forum.
How you do this is different on different computers and different browsers. Luckily, a quick search on Google will normally give you some step by step instructions. So, depending on what computer and browser you use search for something like:
clear cache internet explorer windows 10
clear cache Google Chrome Mac
clear cache samsung tablet
clear cache iPad
You get the idea.
If you have the option of clearing data for individual websites, then clear
www.cyclekartsgb.com and cyclekartsgb.createaforum.com.