Audacity 3.4.2 crashes after 6 months of using without troubles

Hi, ive been using Audacity 3.4.2 on my laptop for about half a year and all was perfect until today, after about 45 minutes it started to switch off and the app is off my screen and ‘crash report’ appears …
I usually record for at least 1 hour, sometimes 2 hours and it never happened, until today
could anyone give me a solution/advice on how to fix it, please