Kernel matching not found

On my Jupyerhub notebook it could not find a kernel matching SMINA and only Python3 is detected.

How to solve.

thanks

Any suggestions to solve this?

thanks

The message you showed in the posted screenshot was fairly clear about what the issue was and the options you had. And so it it was unclear why you were posting this here in the first place. You provided no other information or insight into how this issue arose or steps you have taken to address it, such as: What did your JupyterHub administrator say? I this the only Jupyter .ipynb file you are encountering with this issue? Was it working before? Where you acquired the Jupyter .ipynb file?

The code looks to be Python and so ‘Python 3’ that you have has a choice to select and click on the blue button seems like a logical choice. Beyond that, we are in the dark given what you posted.
You may wish to read over Getting good answers to your questions for guidance.

Thanks so much for your suggestions.