There are at least several ways in which a limited liability company can be recapitalised. The increase in the company’s share capital seems to be a standard and well-known form of recapitalisation, with alternatives including additional payments and shareholder loans.
However, when making a decision, it is advisable to thoroughly understand the potential consequences of each of these mechanisms.
Patrycja Wakuluk and Adam Czarnota write in detail about the ways to recapitalise the company here https://www.kochanski.pl/en/how-to-recapitalise-a-limited-liability-company/