diff --git a/avogadro/qtgui/pythonscript.cpp b/avogadro/qtgui/pythonscript.cpp
index fa51d26ed8..b075b91b75 100644
--- a/avogadro/qtgui/pythonscript.cpp
+++ b/avogadro/qtgui/pythonscript.cpp
@@ -100,7 +100,7 @@ QByteArray PythonScript::execute(const QStringList& args,
 
   // Write scriptStdin to the process's stdin
   if (!scriptStdin.isNull()) {
-    if (!proc.waitForStarted(5000)) {
+    if (!proc.waitForStarted(5000) && m_debug) {
       m_errors << tr("Error running script '%1 %2': Timed out waiting for "
                      "start (%3).")
                     .arg(m_pythonInterpreter,
@@ -110,7 +110,7 @@ QByteArray PythonScript::execute(const QStringList& args,
     }
 
     qint64 len = proc.write(scriptStdin);
-    if (len != static_cast<qint64>(scriptStdin.size())) {
+    if (len != static_cast<qint64>(scriptStdin.size()) && m_debug) {
       m_errors << tr("Error running script '%1 %2': failed to write to stdin "
                      "(len=%3, wrote %4 bytes, QProcess error: %5).")
                     .arg(m_pythonInterpreter)
@@ -123,7 +123,7 @@ QByteArray PythonScript::execute(const QStringList& args,
     proc.closeWriteChannel();
   }
 
-  if (!proc.waitForFinished(5000)) {
+  if (!proc.waitForFinished(5000) && m_debug) {
     m_errors << tr("Error running script '%1 %2': Timed out waiting for "
                    "finish (%3).")
                   .arg(m_pythonInterpreter, realArgs.join(QStringLiteral(" ")),
@@ -132,14 +132,17 @@ QByteArray PythonScript::execute(const QStringList& args,
   }
 
   if (proc.exitStatus() != QProcess::NormalExit || proc.exitCode() != 0) {
-    m_errors << tr("Error running script '%1 %2': Abnormal exit status %3 "
-                   "(%4: %5)\n\nOutput:\n%6")
-                  .arg(m_pythonInterpreter)
-                  .arg(realArgs.join(QStringLiteral(" ")))
-                  .arg(proc.exitCode())
-                  .arg(processErrorString(proc))
-                  .arg(proc.errorString())
-                  .arg(QString(proc.readAll()));
+    if (m_debug)
+      m_errors << tr("Error running script '%1 %2': Abnormal exit status %3 "
+                     "(%4: %5)\n\nOutput:\n%6")
+                    .arg(m_pythonInterpreter)
+                    .arg(realArgs.join(QStringLiteral(" ")))
+                    .arg(proc.exitCode())
+                    .arg(processErrorString(proc))
+                    .arg(proc.errorString())
+                    .arg(QString(proc.readAll()));
+    else
+      m_errors << tr("Warning '%1'").arg(proc.errorString());
     return QByteArray();
   }
 
@@ -254,4 +257,4 @@ QString PythonScript::processErrorString(const QProcess& proc) const
   return result;
 }
 
-} // namespace Avogadro
+} // namespace Avogadro::QtGui
diff --git a/avogadro/qtgui/scriptloader.cpp b/avogadro/qtgui/scriptloader.cpp
index 203b55becf..f77e918792 100644
--- a/avogadro/qtgui/scriptloader.cpp
+++ b/avogadro/qtgui/scriptloader.cpp
@@ -27,9 +27,7 @@
 
 namespace Avogadro::QtGui {
 
-ScriptLoader::ScriptLoader(QObject* parent_)
-  : QObject(parent_)
-{}
+ScriptLoader::ScriptLoader(QObject* parent_) : QObject(parent_) {}
 
 ScriptLoader::~ScriptLoader() {}
 
@@ -40,9 +38,7 @@ bool ScriptLoader::queryProgramName(const QString& scriptFilePath,
   displayName = gen.displayName();
   if (gen.hasErrors()) {
     displayName.clear();
-    qWarning() << "ScriptLoader::queryProgramName: Unable to retrieve program "
-                  "name for"
-               << scriptFilePath << ";" << gen.errorList().join("\n\n");
+    qWarning() << tr("Cannot load script %1").arg(scriptFilePath);
     return false;
   }
   return true;
@@ -69,7 +65,7 @@ QMap<QString, QString> ScriptLoader::scriptList(const QString& type)
   // build up a list of possible files, then we check if they're real scripts
   QStringList fileList;
   foreach (const QString& dirStr, dirs) {
-    qDebug() << "Checking for " << type << " scripts in" << dirStr;
+    qDebug() << tr("Checking for %1 scripts in path %2").arg(type).arg(dirStr);
     QDir dir(dirStr);
     if (dir.exists() && dir.isReadable()) {
       foreach (
@@ -97,7 +93,7 @@ QMap<QString, QString> ScriptLoader::scriptList(const QString& type)
               if (commands.type() == QJsonValue::Array) {
                 // check if "command.*" exists as a file
                 QJsonArray list = commands.toArray();
-                for (auto && i : list) {
+                for (auto&& i : list) {
                   QJsonValue command = i.toObject()["command"];
                   QString name = command.toString();
                   if (name.isEmpty() || name.isNull())
@@ -153,4 +149,4 @@ QMap<QString, QString> ScriptLoader::scriptList(const QString& type)
   return scriptList;
 }
 
-} // namespace Avogadro
+} // namespace Avogadro::QtGui
diff --git a/avogadro/qtplugins/scriptcharges/chargeScripts/antechamber.py b/avogadro/qtplugins/scriptcharges/chargeScripts/antechamber.py
index 4e3b3fda61..f902abc8a3 100644
--- a/avogadro/qtplugins/scriptcharges/chargeScripts/antechamber.py
+++ b/avogadro/qtplugins/scriptcharges/chargeScripts/antechamber.py
@@ -148,7 +148,7 @@ def potential():
         if name:
             print(name)
         else:
-            raise RuntimeError("antechamber is unavailable")
+            sys.exit("antechamber is unavailable")
     elif args["charges"]:
         print(charges())
     elif args["potential"]:
diff --git a/avogadro/qtplugins/scriptcharges/chargeScripts/xtb.py b/avogadro/qtplugins/scriptcharges/chargeScripts/xtb.py
index 193b58b40e..5f6f181939 100644
--- a/avogadro/qtplugins/scriptcharges/chargeScripts/xtb.py
+++ b/avogadro/qtplugins/scriptcharges/chargeScripts/xtb.py
@@ -97,7 +97,7 @@ def potential():
         if name:
             print(name)
         else:
-            raise RuntimeError("xtb is unavailable")
+            sys.exit("xtb is unavailable")
     elif args["charges"]:
         print(charges())
     elif args["potential"]: