you may need to change the system's cryptographic policies to either "LEGACY" or "DEFAULT:SHA1", as SHA-1 has been deprecated:
update-crypto-policies --set DEFAULT:SHA1
reboot and test again
see:
man update-crypto-policies
man crypto-policies
doc link:
3.3. Setting up system-wide cryptographic policies in the web console
note that AES support was added to SCEP in RHCS-10.4 on RHEL-8.6:
with:
jss-4.9.8-1.module+el8pki+19895+c800dfbd
tomcatjss-7.7.3-1.module+el8pki+19895+c800dfbd
redhat-pki-10.13.9-5.module+el8pki+21062+4ed906e8