Necesito ayuda por favor
Hello and welcome,
The message is much too brief to offer any help.
Ollama is an LMM runtime and Open Web UI is the interface, correct?
What kind of PC is it installed on, CPU, RAM, etc.?
The OS is Zorin 18, correct?
How was it installed?
It doesn't run well, what exactly?
Do you have any error messages?
Have no experience with Open WebUI, but have installed Alpaca (via flatpak) as GIU for Ollama. To install that was very easy and it is working. Maybe it would also for you a possibility? Alpaca is available in the Zorin Software store.
But anyhow as @SAPien wrote the details are needed to help you.