Failing to launch LibreOffice on slackware 15 on Dell Inspiron 15, 5000 series

Hi, I am running slackware 15 and installed the prepackaged libreoffice from Alienbob, namely, libreoffice-7.6.1-x86_64-1alien.txz, but it is failing to open. I have copied the output from the terminal.

Code:$ libreoffice --writer
javaldx: Could not find a Java Runtime Environment!
Warning: failed to read path from javaldx
Unspecified Application Error