catch data parse exceptions

src/renderer/components/Experiment/Train/TrainingModalDataTemplatingTab.tsx

@@ -49,8 +49,14 @@ function TrainingModalDataTemplatingTab({
   );
 
   const [debouncedTemplate] = useDebounce(template, 3000);
+  let parsedData;
 
-  const parsedData = data ? JSON.parse(data) : null;
+  try {
+    parsedData = data ? JSON.parse(data) : null;
+  } catch (e) {
+    console.error('Error parsing data', e);
+    parsedData = '';
+  }
 
   function PreviewSection() {
     return (

src/renderer/components/Experiment/Train/TraningModalDataTab.tsx

@@ -45,7 +45,13 @@ export default function TrainingModalDataTab({
     fetcher
   );
 
-  const parsedData = data ? JSON.parse(data) : null;
+  let parsedData;
+  try {
+    parsedData = data ? JSON.parse(data) : null;
+  } catch (e) {
+    console.error('Error parsing data', e);
+    parsedData = '';
+  }
   return (
     <Box
       sx={{