Hello 4dodo,
it is shared server, LINUX, PHP v. 7.1 (I can change it to lower version, 7.2 isn´t there)
I don´t have authorization to change php.ini file. I found, that some of values in php.ini can be update by file .user.ini, but I don´t know how. For example: short_open_tag
Thank you for reply.