In the module download page the module version 1.1.1 was last updated in 10 November 2021
However there are two updated files you had uploaded on the forum on 28 April 2022, in this thread:
https://www.joomlart.com/forums/d/40110-axis-caption-format-problem/16
The current downloadable module does not work correctly without replacing these two files.
Could you please update the module?