How do I increase the memory pool?

[thekit]

ggml_new_tensor_impl: not enough space in the context's memory pool (needed 8481656096, available 8478848400)

Halfway through a good prompt and answer session I get a crash like the one above.

What should I do to remediate this?

I am using about 12gb of my 16gb of ram, on windows 11 home.

PS C:\ai_experiments\privateGPT> cat ..env
PERSIST_DIRECTORY=db
LLAMA_EMBEDDINGS_MODEL=models/gpt4-x-vicuna-13B.ggml.q5_1.bin
MODEL_TYPE=GPT4All
MODEL_PATH=models/ggml-gpt4all-j-v1.3-groovy.bin
MODEL_N_CTX=1000
PS C:\ai_experiments\privateGPT>

I have to use vicuna because the default model doesn't work.