I have texlive 2018 on my pc and I'm facing issues with tkz-tab package which were not shown with texlive 2017
! No room for a new \count .
\ch@ck ...\else \errmessage {No room for a new #3}
\fi
l.136 \newinsert\@bidi@copyins@
?
\documentclass[12pt,a4paper]{article}
\usepackage{fontspec}
\usepackage{tkz-tab}
\setmainfont[Script=Arabic]{Amiri}
\usepackage[rldocument]{bidi}
\begin{document}
أهلا
\end{document}