Is the module you might fail a core module? How many credits is it worth?
If it's a non-core module, worth 30 credits or less, than their Academic Regulations (
here) allow it to condoned:
"5.10. For non-core modules at level 5 and 6, condonement will normally be granted after the first attempt, where students have achieved a mark in the range of 1-39 inclusive."
"5.12. For three-year programmes and four-year programmes that include a year abroad/year in industry, the maximum credit allowed for modules with marks in the condonable range across levels 5 and above will not exceed 30."
If that isn't an option (because it's a core module, for example), then there are other ways to proceed. For example your progression status might be "Progresses (AL)" which means;
"You have progressed to the next year of study. However, you have taken less than the required amount of credit for the year and you have reassessments that you must take in the next assessment period. You will also need to take additional credit before the end date of your overall programme in order to graduate and receive your degree award."
You should speak to staff in your faculty or department to understand the specific rules and your options. Contact details for each faculty and department are
here. Additionally, you may like to contact
KCLSU Advice for confidential and impartial academic advice.