diff --git a/src/docFillerCore/engines/gptEngine.ts b/src/docFillerCore/engines/gptEngine.ts
index aa49109..e44e814 100644
--- a/src/docFillerCore/engines/gptEngine.ts
+++ b/src/docFillerCore/engines/gptEngine.ts
@@ -162,7 +162,12 @@ export class LLMEngine {
     }
     try {
       const parser = LLMEngine.getParser(questionType);
-      const modelInstance = LLMEngine.instances[this.engine];
+      let modelInstance = LLMEngine.instances[this.engine];
+
+      if (!modelInstance) {
+        await LLMEngine.fetchApiKeys();
+        modelInstance = LLMEngine.instantiateEngine(this.engine);
+      }
 
       if (modelInstance) {
         const selectedProfileKey = (await getSelectedProfileKey()).trim();