CD Not Appearing, Graphical errors in maintenance and Safe modes

I wish there was un Upload button for a screenshot, but this is the only way I know to show the terminal output:

anthony@anthony-OptiPlex-9010:~$ cairo-dock -mf
warning : (/build/cairo-dock-zB8fkd/cairo-dock-3.4.1+git20201103.0836f5d1/src/implementations/cairo-dock-egl.c:gldi_register_egl_backend:232)
  Cairo-Dock was not built with EGL support

 ============================================================================
 Cairo-Dock version : 3.4.1
 Compiled date : Jan 2 2021 11:22:34
 Built with GTK : 3.24
 Running with OpenGL: 1
 ============================================================================

warning : (/build/cairo-dock-zB8fkd/cairo-dock-3.4.1+git20201103.0836f5d1/src/cairo-dock.c:main:738)
  showing the maintenance mode ...
warning : (/build/cairo-dock-zB8fkd/cairo-dock-3.4.1+git20201103.0836f5d1/src/cairo-dock.c:main:740)
  end of the maintenance mode.
gldi_managers_get_config: assertion 'pKeyFile != NULL' failed
warning : (/build/cairo-dock-zB8fkd/cairo-dock-3.4.1+git20201103.0836f5d1/src/gldit/cairo-dock-image-buffer.c:cairo_dock_load_image_buffer_from_surface:162)
  An image has an invalid size, will not be loaded.
g_file_test: assertion 'filename != NULL' failed
g_file_test: assertion 'filename != NULL' failed
warning : (/build/cairo-dock-zB8fkd/cairo-dock-3.4.1+git20201103.0836f5d1/src/gldit/cairo-dock-image-buffer.c:cairo_dock_load_image_buffer_from_surface:162)
  An image has an invalid size, will not be loaded.
warning : (/build/cairo-dock-zB8fkd/cairo-dock-3.4.1+git20201103.0836f5d1/src/gldit/cairo-dock-image-buffer.c:cairo_dock_load_image_buffer_from_surface:162)
  An image has an invalid size, will not be loaded.

It seems like you're encountering some warnings and errors when running Cairo-Dock. The messages suggest issues related to EGL support, maintenance mode, and invalid image sizes. Here are some points to consider:

1. **EGL Support Warning:** Cairo-Dock was not built with EGL support. If EGL support is necessary or desired, you might need to rebuild Cairo-Dock with the appropriate EGL libraries and dependencies.

2. **Maintenance Mode:** Cairo-Dock is entering and exiting maintenance mode during the execution. This might be normal behavior or indicative of a specific condition. You may want to check the documentation or forums for Cairo-Dock to understand the implications of maintenance mode in your context.

3. **Invalid Image Sizes:** There are warnings about images having invalid sizes, and as a result, they will not be loaded. This could be a problem with specific image files or a broader issue with the image loading process. Check the images being used, their file formats, and sizes.

4. **Assertions Failed:** Assertions failing may indicate issues with the input parameters or the application's internal state. In particular, the assertions related to `pKeyFile` and `filename` suggest that certain file-related parameters are not as expected.

Here are some steps you can take:

- Review the Cairo-Dock documentation for information on EGL support and maintenance mode.
- Check the images being used and ensure they are in valid formats and sizes.
- Consider reaching out to the Cairo-Dock community or support channels for assistance with the specific warnings and errors you are encountering.
- If EGL support is crucial for your use case, investigate the steps to rebuild Cairo-Dock with EGL support enabled.

Remember to include relevant details like your operating system version, Cairo-Dock version, and any recent changes you've made to your system when seeking assistance. for more visit https://www.araxsystemsllc.com/product/holosun-he509-rd-enclosed-solar-powered-red-dot-sight-w-507c-mounting-plate-acss-vulcan-reticle-he509-rd-acss-r/

Thanks farhan, that solved my question.

Thanks for the great answer. In the Cairo Dock forum, the last post was in 2016, and in GitHub, the software was last released in 2015. I was wondering if I should just give up on software that was last released in 2015? I am not sure how to contact people who would know how to solve the multiple problems you listed--I mean with the CD Forum not posted to since 2016. My OS is Ubuntu Mate 22.04. The last time CD worked, but then I changed the theme, and from then on it didn't display; I'm pretty sure about that.

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