I have used LIbre Office on Debian 8 and 9 with no problems opening the different included programs: Writer, Calc, Draw, Impress, Math, Base. With Debian 10 cannot open any of these programs after installing the programs through the Synaptic Package Manager and also tried the Software on-ine option, although troubleshooting find LibreCad does work okay. After installing either way I get this message when attempting to open any of the programs: "Libre Office 6.1 - Fatal Error, The application cannot be started. {context= "bundled"} caught unexpected com.sun.star.deployment.DeploymentException: Extension Manager: failed to read data entry in backend db: file:///home/stephenlponpod/.config/libreoffice/4/user/extensions/bundeled/registry/com.sun.star.comp.deployment.help.PackageRegistryBackend/backenddb.xml". Have no idea what all this means or how to correct this problem and get LIbre Office working. The Calligra Suite and AbiWord work fine.
I have 4 different operating systems on this computer: Windows 10, AV Linux 2019, Fedora Design Suite 30, and Debian 10.0 to start yet upgraded to 10.6. Have installed software manually using the Synaptic Package Manager off-line with burned iso discs to DVDs. Used iso discs 1,2, and 3 downloaded and burned for Debian 8 in the past, and purchased from OSdiscs.com the complete repository set for Debian 9.4 and 10.0 (OSdiscs no longer available). Have added entire repository into Synaptic Package Manager, indexed the entire repository set for Debian 9 (worked very well) and Debian 10 (a lot more problems and disappointments).
I seem to have a lot of problems with Debian 10 compared to past use of 8 and 9. File sharing between other computers hooked up through ethernet cables and hub hardware (off-line without modem) rarely work anymore, too often find myself going back to using thumb drives for copying files between computers. Samba used to work connecting between Debian 8 and Windows on other computers using minidlna, yet nothing works anymore with 10. WINE works well with Fedora 30 and 32 yet have never been able to get this working with Debian. Debian has also removed a lot of nice programs for multi-media playing like Amarok and Banshee in version 10. I am keeping Debian 9 on two other older computers, both also have 4 different operating systems. These other computers will upgrade (use latest Fedora Design Suite 32) yet staying with older versions of Debian, do not like what I have experienced on other computer that I have installed Debian 10. I have tried both Mint and Ubuntu as alternatives yet do not like these operating systems as much compared to Debian 9 series.
I'm by no means a developer or engineer and have little programming experience except for years ago 1980's in college computer science courses such as using Pascal and Basic as an Accounting major. Over the past 15 years use computers intensely for graphic arts design, my personal on-line art gallery web site and listening to music while painting,drawing and doing other things. Have picked up on the use of Linux through books I have purchased such as "Linux Bible" and "Linux All in One for Dummies". I lot of what I have mentioned as problems have caused me hours of trying things on my own using book reference yet cannot solve these problems. With this forum thread if anyone could help with the one problem of LIbre Office I would most appreciate your time and consideration.