fix: redirect to lms home if query params not set
diff --git a/erpnext/www/lms/course.py b/erpnext/www/lms/course.py
index e7ed2e3..c18d64e 100644
--- a/erpnext/www/lms/course.py
+++ b/erpnext/www/lms/course.py
@@ -5,9 +5,16 @@
 no_cache = 1
 
 def get_context(context):
+	try:
+		program = frappe.form_dict['program']
+		course_name = frappe.form_dict['name']
+	except KeyError:
+		frappe.local.flags.redirect_location = '/lms'
+		raise frappe.Redirect
+
 	context.education_settings = frappe.get_single("Education Settings")
-	course = frappe.get_doc('Course', frappe.form_dict['name'])
-	context.program = frappe.form_dict['program']
+	course = frappe.get_doc('Course', course_name)
+	context.program = program
 	context.course = course
 
 	context.topics = course.get_topics()
diff --git a/erpnext/www/lms/program.py b/erpnext/www/lms/program.py
index 1fcb3d3..7badedc 100644
--- a/erpnext/www/lms/program.py
+++ b/erpnext/www/lms/program.py
@@ -6,10 +6,16 @@
 no_cache = 1
 
 def get_context(context):
+	try:
+		program = frappe.form_dict['program']
+	except KeyError:
+		frappe.local.flags.redirect_location = '/lms'
+		raise frappe.Redirect
+
 	context.education_settings = frappe.get_single("Education Settings")
-	context.program = get_program(frappe.form_dict['program'])
+	context.program = get_program(program)
 	context.courses = [frappe.get_doc("Course", course.course) for course in context.program.courses]
-	context.has_access = utils.allowed_program_access(frappe.form_dict['program'])
+	context.has_access = utils.allowed_program_access(program)
 	context.progress = get_course_progress(context.courses, context.program)
 
 def get_program(program_name):
diff --git a/erpnext/www/lms/topic.py b/erpnext/www/lms/topic.py
index 0af0778..f75ae8e 100644
--- a/erpnext/www/lms/topic.py
+++ b/erpnext/www/lms/topic.py
@@ -5,9 +5,13 @@
 no_cache = 1
 
 def get_context(context):
-	course = frappe.form_dict['course']
-	program = frappe.form_dict['program']
-	topic = frappe.form_dict['topic']
+	try:
+		course = frappe.form_dict['course']
+		program = frappe.form_dict['program']
+		topic = frappe.form_dict['topic']
+	except KeyError:
+		frappe.local.flags.redirect_location = '/lms'
+		raise frappe.Redirect
 
 	context.program = program
 	context.course = course