If your website now contains 100 subpages or less (and you only have 1 domain), it is possible to get back on the free subscription. Save all data you may need, cancel your account (https://manage.cookiebot.com/goto/cancelaccount), wait 5-10 minutes and then create a new account. Add your domain and implement the new scripts. This account (and the associated scripts) will be a free subscription for as long as your page count does not increase above the 100.
If you do this within the 1-month trial period, there will be no cost to you. Please note that unfortunately this is not something that we can do for you.
See also Why does your scanner say that my website has more than 100 pages? /hc/en-us/articles/360003774494-Why-does-your-scanner-say-that-my-website-has-more-than-100-pages-