Hello,
may be current Tomcat 9.0.87 corrects bugs from 9.0.43 ?
As current Linux 6.8 should be better than 6.1 ?
Does your tomcat 9 run ok without Axelor ? Do its servlets/JSP demos work ?
How was your « build made » ? (and with which JDK ?) How was it « deployed » to your tomcat ?
(see my post « A first look at v8 from sources » if you can reproduce, what detail are (not) same…)