firstly, we recommend carefully reading official documentation from website: https://docs.pikvm.org/faq/.
If you run into any issues you can check the following Q&A. If that still doesn't help you you're welcome to raise an issue ticket at https://geekworm.com/community/forum/topic/78220/pikvm-faqor email to us (support@geekworm.com)
Q: How to enable OLED?