Unsupported format character

[ajsb85]

[vdrhtc]

Hello, Alexander!

Thanks for the feedback. You should fix your preamble, it seems to be broken (don't know how this happened as long as the bot checks preambles for compilation errors before registering them). Try changing it back to the default one (below) with /setcustompreamble command.

\documentclass{article}
\usepackage[a6paper]{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage{textcomp}
\usepackage{lastpage}
\usepackage{amsmath}
\usepackage{physics}
\usepackage{lipsum}
\pagenumbering{gobble}

[ajsb85]

It's works! Thank you @vdrhtc