diff --git a/libs/remix-debug/src/solidity-decoder/localDecoder.ts b/libs/remix-debug/src/solidity-decoder/localDecoder.ts
index 9564efc93b..70df3e9715 100644
--- a/libs/remix-debug/src/solidity-decoder/localDecoder.ts
+++ b/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] = '<decoding failed - ' + e.message + '>'
+        locals[name] = { error: '<decoding failed - ' + e.message + '>' }
       }
     }
   }
diff --git a/libs/remix-debug/src/solidity-decoder/stateDecoder.ts b/libs/remix-debug/src/solidity-decoder/stateDecoder.ts
index b7908da3c3..709faff99c 100644
--- a/libs/remix-debug/src/solidity-decoder/stateDecoder.ts
+++ b/libs/remix-debug/src/solidity-decoder/stateDecoder.ts
@@ -25,7 +25,7 @@ export async function decodeState (stateVars, storageResolver) {
       ret[stateVar.name] = decoded
     } catch (e) {
       console.log(e)
-      ret[stateVar.name] = '<decoding failed - ' + e.message + '>'
+      ret[stateVar.name] = { error: '<decoding failed - ' + e.message + '>' }
     }
   }
   return ret
@@ -64,6 +64,6 @@ export async function solidityState (storageResolver, astList, contractName) {
   try {
     return await decodeState(stateVars, storageResolver)
   } catch (e) {
-    return '<decoding failed - ' + e.message + '>'
+    return { error: '<decoding failed - ' + e.message + '>' }
   }
 }
diff --git a/libs/remix-debug/src/solidity-decoder/types/ArrayType.ts b/libs/remix-debug/src/solidity-decoder/types/ArrayType.ts
index 3792579531..eb5eff4d30 100644
--- a/libs/remix-debug/src/solidity-decoder/types/ArrayType.ts
+++ b/libs/remix-debug/src/solidity-decoder/types/ArrayType.ts
@@ -36,7 +36,7 @@ export class ArrayType extends RefType {
     } catch (e) {
       console.log(e)
       return {
-        value: '<decoding failed - ' + e.message + '>',
+        error: '<decoding failed - ' + e.message + '>',
         type: this.typeName
       }
     }
@@ -56,7 +56,7 @@ export class ArrayType extends RefType {
         ret.push(await this.underlyingType.decodeFromStorage(currentLocation, storageResolver))
       } catch (e) {
         return {
-          value: '<decoding failed - ' + e.message + '>',
+          error: '<decoding failed - ' + e.message + '>',
           type: this.typeName
         }
       }
@@ -84,7 +84,7 @@ export class ArrayType extends RefType {
     }
     if (isNaN(length)) {
       return {
-        value: '<decoding failed - length is NaN>',
+        error: '<decoding failed - length is NaN>',
         type: 'Error'
       }
     }
diff --git a/libs/remix-debug/src/solidity-decoder/types/DynamicByteArray.ts b/libs/remix-debug/src/solidity-decoder/types/DynamicByteArray.ts
index 5ac37c1ea2..85cf69ef88 100644
--- a/libs/remix-debug/src/solidity-decoder/types/DynamicByteArray.ts
+++ b/libs/remix-debug/src/solidity-decoder/types/DynamicByteArray.ts
@@ -16,7 +16,7 @@ export class DynamicByteArray extends RefType {
       value = await extractHexValue(location, storageResolver, this.storageBytes)
     } catch (e) {
       console.log(e)
-      return { value: '<decoding failed - ' + e.message + '>', type: this.typeName }
+      return { error: '<decoding failed - ' + e.message + '>', type: this.typeName }
     }
     const length = new BN(value, 16)
     if (length.testn(0)) {
@@ -27,7 +27,7 @@ export class DynamicByteArray extends RefType {
         currentSlot = await readFromStorage(dataPos, storageResolver)
       } catch (e) {
         console.log(e)
-        return { value: '<decoding failed - ' + e.message + '>', type: this.typeName }
+        return { error: '<decoding failed - ' + e.message + '>', type: this.typeName }
       }
       while (length.gt(new BN(ret.length)) && ret.length < 32000) {
         currentSlot = currentSlot.replace('0x', '')
@@ -37,7 +37,7 @@ export class DynamicByteArray extends RefType {
           currentSlot = await readFromStorage(dataPos, storageResolver)
         } catch (e) {
           console.log(e)
-          return { value: '<decoding failed - ' + e.message + '>', type: this.typeName }
+          return { error: '<decoding failed - ' + e.message + '>', type: this.typeName }
         }
       }
       return { value: '0x' + ret.replace(/(00)+$/, ''), length: '0x' + length.toString(16), type: this.typeName }
diff --git a/libs/remix-debug/src/solidity-decoder/types/StringType.ts b/libs/remix-debug/src/solidity-decoder/types/StringType.ts
index 8e31b3d17f..2ca56484db 100644
--- a/libs/remix-debug/src/solidity-decoder/types/StringType.ts
+++ b/libs/remix-debug/src/solidity-decoder/types/StringType.ts
@@ -15,7 +15,7 @@ export class StringType extends DynamicByteArray {
       decoded = await super.decodeFromStorage(location, storageResolver)
     } catch (e) {
       console.log(e)
-      return '<decoding failed - ' + e.message + '>'
+      return { error: '<decoding failed - ' + e.message + '>' }
     }
     return format(decoded)
   }
@@ -25,7 +25,7 @@ export class StringType extends DynamicByteArray {
       return await super.decodeFromStack(stackDepth, stack, memory, null, calldata, variableDetails)
     } catch (e) {
       console.log(e)
-      return '<decoding failed - ' + e.message + '>'
+      return { error: '<decoding failed - ' + e.message + '>' }
     }
   }
 
diff --git a/libs/remix-debug/src/solidity-decoder/types/Struct.ts b/libs/remix-debug/src/solidity-decoder/types/Struct.ts
index f6ea2748bc..1995471ffb 100644
--- a/libs/remix-debug/src/solidity-decoder/types/Struct.ts
+++ b/libs/remix-debug/src/solidity-decoder/types/Struct.ts
@@ -22,7 +22,7 @@ export class Struct extends RefType {
         ret[item.name] = await item.type.decodeFromStorage(globalLocation, storageResolver)
       } catch (e) {
         console.log(e)
-        ret[item.name] = '<decoding failed - ' + e.message + '>'
+        ret[item.name] = { error: '<decoding failed - ' + e.message + '>' }
       }
     }
     return { value: ret, type: this.typeName }
diff --git a/libs/remix-debug/src/solidity-decoder/types/ValueType.ts b/libs/remix-debug/src/solidity-decoder/types/ValueType.ts
index 63bd4ae0f0..262cfcbb10 100644
--- a/libs/remix-debug/src/solidity-decoder/types/ValueType.ts
+++ b/libs/remix-debug/src/solidity-decoder/types/ValueType.ts
@@ -31,7 +31,7 @@ export class ValueType {
       return { value: this.decodeValue(value), type: this.typeName }
     } catch (e) {
       console.log(e)
-      return { value: '<decoding failed - ' + e.message + '>', type: this.typeName }
+      return { error: '<decoding failed - ' + e.message + '>', type: this.typeName }
     }
   }