Why don’t use Flarum Quick Install provided by Hestia?
I’ve installed it 5 minutes ago and it installed without issues.
Note: Before installing Flarum, check whether you have enabled proc_open. Edit the php.ini for your PHP cli version and remove it from directive disable_functions
Example for PHP 8.2:
Edit file:
/etc/php/8.2/cli/php.ini
And remove proc_open from this list:
disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,exec,system,passthru,shell_exec,proc_open,popen