It's a bad time of year to jump to conclusions. Apart from it being the Xmas/New Year Holiday period, the UK is experiencing very high sickness rates at the moment due to Omicron COVID. One in ten Londoners last week.
COVID may not be bothering stay at home pensioners much, or bumping large numbers of people off thank god, but it's causing havoc in the workforce at the moment. When my son returned to work on the 5th, he was one of six out of twenty – more than two thirds of his colleagues were off-sick with COVID.
In the circumstances it wouldn't be surprising if a small-business failed to notice they hadn't renewed their website subscription. The website provider is probably fully automatic. All their staff could be sick, while the computer still sends out reminders and disconnects anyone who hasn't paid their bill!
Wait and see.
Dave