Issues with Adding and Saving Text-to-Speech Audio

I have encountered an issue with Text-to-Speech functionality in Articulate, which has persisted for the past two days. Previously, I created several audios using this feature without any difficulties. However, I recently added new audios, and the following day, the Articulate file began displaying errors. Specifically, all the audios created the previous day were non-functional, and I found myself unable to modify them.

Interestingly, while the text used to generate these audios remained intact, editing the text slightly appeared to update and temporarily recover the corresponding audio. Unfortunately, upon exiting the project and reopening it, the audio would disappear again. This issue also arises when attempting to create new Text-to-Speech audio files.

I would greatly appreciate your assistance in resolving this matter.

Thank you