This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2023.6.1)  5 MAY 2025 23:04
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**template
(./template.tex
LaTeX2e <2017-04-15>
Babel <3.18> and hyphenation patterns for 16 language(s) loaded.

! LaTeX Error: File `Definitions/mdpi.cls' not found.

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(\end occurred when \ifx on line 3 was incomplete)
(\end occurred when \ifx on line 3 was incomplete) 
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