Probability score: 0.6  

Question improvement suggestion: Please provide the exact version of Trados Studio you are using and any recent changes made to your system or software.  

In the meantime, based on the information you have provided, here is a suggested answer to your question:  

Hello,  

It seems you are encountering an error related to the LuaCOM plugin when starting Trados Studio. To resolve this issue, please follow these steps:  

**Step 1:** Close Trados Studio completely.  

**Step 2:** Navigate to the following directory based on your version of Trados Studio:  

- For Trados Studio 2021: `C:\Users\%USERNAME%\AppData\Roaming\SDL\SDL Trados Studio\16\Plugins`  

- For Trados Studio 2019: `C:\Users\%USERNAME%\AppData\Roaming\SDL\SDL Trados Studio\15\Plugins`  

**Step 3:** Rename the `Plugins` folder to `Plugins_old` or delete it.  

**Step 4:** Check the Local folder as well:  

- For Trados Studio 2021: `C:\Users\%USERNAME%\AppData\Local\SDL\SDL Trados Studio\16\Plugins`  

- For Trados Studio 2019: `C:\ProgramData\SDL\SDL Trados Studio\15\Plugins`  

**Step 5:** If you have any plugins installed, consider reinstalling them from the RWS AppStore after confirming that the issue is resolved.  

**Step 6:** Additionally, ensure that your antivirus software is not blocking any components of Trados Studio. You may want to add the installation folder as an exception.  

**Step 7:** If the problem persists, consider running a repair installation of Trados Studio through Control Panel > Programs and Features.  

After completing these steps, restart your computer and launch Trados Studio again to see if the issue is resolved.  

I hope this answer addressed your question. If not, please reject the answer, add the question improvement suggestion information, and click the RWS Community AI checkbox on the right to try again.  

RWS Community AI