fix minor typos and grammer

app/controllers/home_controller.rb

@@ -17,7 +17,7 @@ def index
 
         redirect_to event_ticket_request_path(event_id: most_recent_event.to_param, id: ticket_request.id)
 
-        else0
+        else
         redirect_to new_event_ticket_request_path(event_id: most_recent_event.to_param)
       end
     else

app/controllers/ticket_requests_controller.rb

@@ -76,7 +76,7 @@ def new
     if signed_in?
       @user = current_user
 
-      existing_request = TicketRequest.where(user_id: current_user.id, event_id: @event).order(:created_at).first
+      existing_request = TicketRequest.where(user_id: @user.id, event_id: @event).order(:created_at).first
       if existing_request
         redirect_to event_ticket_request_path(event_id: @event.id, id: existing_request.id)
       end

app/models/event.rb

@@ -139,7 +139,7 @@ def ticket_sales_open?
     elsif ticket_sales_end_time && Time.current.after?(ticket_sales_end_time)
       errors.add(:ticket_sales_end_time, 'Tickets are no longer on sale for this event.')
     elsif Time.current.after?(end_time)
-      errors.add(:end_time, 'This event has ended, so no ticket sales sare accepted anymore.')
+      errors.add(:end_time, 'This event has ended and ticket sales are closed.')
     else
       return true
     end
@@ -151,7 +151,7 @@ def ticket_requests_open?
     if ticket_requests_end_time && Time.current.after?(ticket_requests_end_time)
       errors.add(:ticket_requests_end_time, 'Ticket requests are no longer accepted.')
     elsif Time.current.after?(end_time)
-      errors.add(:end_time, 'This event has ended, so no ticket requests are accepted anymore.')
+      errors.add(:end_time, 'This event has ended and ticket sales are closed.')
     else
       return true
     end