diff --git a/Project.toml b/Project.toml
index b788ddd..b66dba5 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "PRISMA"
 uuid = "7b67a8d2-c4f5-4933-b91c-0fc427024db5"
 authors = ["Ceco Elijah Maples <mapleselijah9@gmail.com>", "PRISMA.jl Contributors"]
-version = "0.0.3"
+version = "0.0.4"
 
 [deps]
 DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
@@ -10,6 +10,7 @@ Graphviz_jll = "3c863552-8265-54e4-a6dc-903eb78fde85"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Poppler_jll = "9c32591e-4766-534b-9725-b71a8799265b"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
+TidierStrings = "248e6834-d0f8-40ef-8fbb-8e711d883e9c"
 Transformers = "21ca0261-441d-5938-ace7-c90938fde4d4"
 
 [compat]
@@ -21,6 +22,7 @@ Graphviz_jll = "2.50"
 LinearAlgebra = "1"
 Poppler_jll = "24.6"
 Statistics = "1"
+TidierStrings = "0.2"
 Transformers = "0.3"
 XLSX = "0.10"
 julia = "1"
diff --git a/app/frontend/src/pages/checklist.tsx b/app/frontend/src/pages/checklist.tsx
index 3aeb2c8..8e67c18 100644
--- a/app/frontend/src/pages/checklist.tsx
+++ b/app/frontend/src/pages/checklist.tsx
@@ -85,7 +85,7 @@ export default function Checklist() {
 
       if (!response.ok) {
         const errorData = await response.json();
-        const errorMessage = `Error submitting file: ${errorData.error}`;
+        const errorMessage = `Error generating checklist: ${errorData.error}`;
         alert(errorMessage);
         throw new Error(errorMessage);
       }
@@ -100,9 +100,13 @@ export default function Checklist() {
       setOpenedFile(newFile);
       handleFileRemove();
     } catch (error) {
-      console.error("Error submitting file:", error);
+      console.error("Error generating checklist:", error);
       handleFileRemove();
-      alert(`File could not be sent to the server: ${error.message}`);
+      if (error instanceof Error) {
+        alert(`Error generating checklist: ${error.message}`);
+      } else {
+        alert("Error generating checklist: An unknown error occurred.");
+      }
     }
   };
 
@@ -272,8 +276,12 @@ export default function Checklist() {
         a.remove();
       }
     } catch (error) {
-      console.error("Error exporting files:", error);
-      alert(`Error exporting files: ${error.message}`);
+      console.error("Error exporting checklist(s):", error);
+      if (error instanceof Error) {
+        alert(`Error exporting checklist(s): ${error.message}`);
+      } else {
+        alert("Error exporting checklist(s): An unknown error occurred.");
+      }
     }
   };
 
diff --git a/app/frontend/src/pages/flow_diagram.tsx b/app/frontend/src/pages/flow_diagram.tsx
index e751e76..300d94b 100644
--- a/app/frontend/src/pages/flow_diagram.tsx
+++ b/app/frontend/src/pages/flow_diagram.tsx
@@ -393,11 +393,14 @@ export default function FlowDiagram() {
         container.innerHTML = svgData;
       } else {
         console.error("Flow diagram container element not found");
-        alert("Flow diagram container element not found.");
       }
     } catch (error) {
-      console.error("Error generating flow diagram:", error);
-      alert(`Error generating flow diagram: ${error.message}`);
+      console.error("Error fetching data:", error);
+      if (error instanceof Error) {
+        alert(`Error fetching flow diagram: ${error.message}`);
+      } else {
+        alert("Error fetching flow diagram: An unknown error occurred.");
+      }
     }
   }
 
@@ -415,7 +418,7 @@ export default function FlowDiagram() {
 
       if (!response.ok) {
         const errorData = await response.json();
-        const errorMessage = `Error fetching flow diagram: ${errorData.error}`;
+        const errorMessage = `Error downloading flow diagram: ${errorData.error}`;
         alert(errorMessage);
         throw new Error(errorMessage);
       }
@@ -424,9 +427,7 @@ export default function FlowDiagram() {
       const flowDiagramBytes = data.flow_diagram;
 
       if (!flowDiagramBytes) {
-        const errorMessage = "No binary data received from the server.";
-        alert(errorMessage);
-        throw new Error(errorMessage);
+        throw new Error("No binary data received from the server.");
       }
 
       const mimeTypeMap: { [key: string]: string } = {
@@ -448,7 +449,11 @@ export default function FlowDiagram() {
       URL.revokeObjectURL(url);
     } catch (error) {
       console.error("Error downloading flow diagram:", error);
-      alert(`Error downloading flow diagram: ${error.message}`);
+      if (error instanceof Error) {
+        alert(`Error downloading flow diagram: ${error.message}`);
+      } else {
+        alert("Error downloading flow diagram: An unknown error occurred.");
+      }
     }
   }
 
diff --git a/src/PRISMA.jl b/src/PRISMA.jl
index dbfb617..5135c11 100644
--- a/src/PRISMA.jl
+++ b/src/PRISMA.jl
@@ -25,6 +25,7 @@ using Graphviz_jll: neato
 using LinearAlgebra: norm, dot
 using Poppler_jll: pdfinfo, pdftotext
 using Statistics: mean
+using TidierStrings
 using Transformers: encode, @hgf_str
 
 export checklist_df, checklist, Checklist
diff --git a/src/flow_diagram.jl b/src/flow_diagram.jl
index 0edc14e..8bd5adb 100644
--- a/src/flow_diagram.jl
+++ b/src/flow_diagram.jl
@@ -480,7 +480,7 @@ function flow_diagram(
         if !(from in excluded_boxes) && !(to in excluded_boxes)
             dot_lang *= """
             $from -> $to [
-                arrowhead=$(from in Set([7, 21]) ? "none" : arrow_head),
+                arrowhead=$(from in Set([7, 21]) && to != 22 ? "none" : arrow_head),
                 arrowsize="$arrow_size",
                 color="$arrow_color",
                 penwidth="$arrow_width"