Nevermind, found the solution myself. If anyone faces the same problem just do the following steps:
- Create a new Virtualbox machine with the Bitrix Virtual environment;
- Create a server;
- Update it to 7.4.4, which is the current latest stable version and already has the mbstring.func_overload removed;
- You can start the installation, you should not run into the same problem again.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…