The installation does not work for the latest version of R (R version 4.0.4)

[sieu-tran]

I recently updated my R to R version 4.0.4. I have all dependencies installed and updated.
Here is what I ran:
install_github("bd2kccd/r-causal")

Here is the error:
Error: .onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: No CurrentVersion entry in Software/JavaSoft registry! Try re-installing Java and make sure R and Java have matching architectures.
Execution halted
ERROR: lazy loading failed for package 'rcausal'

Error: Failed to install 'rcausal' from GitHub:
(converted from warning) installation of package

Do you have any suggestions on how to fix this bug? Thank you very much!