fix assigning the type property

libs/remix-debug/src/solidity-decoder/localDecoder.ts

@@ -21,7 +21,7 @@ export async function solidityLocals (vmtraceIndex, internalTreeCall, stack, mem
         locals[name] = await variable.type.decodeFromStack(variable.stackDepth, stack, memory, storageResolver, calldata, cursor, variable)
       } catch (e) {
         console.log(e)
-        locals[name] = { error: '<decoding failed - ' + e.message + '>' }
+        locals[name] = { error: '<decoding failed - ' + e.message + '>', type: variable && variable.type && variable.type.typeName || 'unknown' }
       }
     }
   }

libs/remix-debug/src/solidity-decoder/types/StringType.ts

@@ -25,7 +25,7 @@ export class StringType extends DynamicByteArray {
       return await super.decodeFromStack(stackDepth, stack, memory, storageResolver, calldata, cursor, variableDetails)
     } catch (e) {
       console.log(e)
-      return { error: '<decoding failed - ' + e.message + '>' }
+      return { error: '<decoding failed - ' + e.message + '>', type: this.typeName }
     }
   }