diff --git a/server/bin/collector.py b/server/bin/collector.py
index cc1706c6d8eb09dcd75f379ace166e2ae8590875..7025864c22d54e015219745602e6cb0e5cb73f1a 100644
--- a/server/bin/collector.py
+++ b/server/bin/collector.py
@@ -11,9 +11,11 @@ if __name__ == '__main__':
         sys.exit()
     elif (sys.argv[1].startswith("/")):
         if (not os.path.isfile(sys.argv[1])):
+            print(f"\n File {sys.argv[1]} does not exists")
             print("\n" + sys.argv[0] + ' [config.ini] [collector number]')
             sys.exit()
     elif (not os.path.isfile(os.path.expanduser('~/trackdirect/config/' + sys.argv[1]))):
+        print(f"\n File ~/trackdirect/config/{sys.argv[1]} does not exists")
         print("\n" + sys.argv[0] + ' [config.ini] [collector number]')
         sys.exit()
 
diff --git a/server/bin/remover.py b/server/bin/remover.py
index 1116319836dfe02ec0031652d57c14789217d02e..d375cd2363f2d11b4da0a9696ddd826f2f846be9 100644
--- a/server/bin/remover.py
+++ b/server/bin/remover.py
@@ -1,9 +1,7 @@
-import trackdirect
 import sys
 import os.path
 import logging
 import logging.handlers
-import psycopg2
 import psycopg2.extras
 import datetime
 import time
@@ -16,14 +14,16 @@ from trackdirect.repositories.PacketRepository import PacketRepository
 if __name__ == '__main__':
 
     if (len(sys.argv) < 2):
-        print "\n" + sys.argv[0] + ' [config.ini]'
+        print("\n" + sys.argv[0] + ' [config.ini]')
         sys.exit()
     elif (sys.argv[1].startswith("/")):
         if (not os.path.isfile(sys.argv[1])):
-            print "\n" + sys.argv[0] + ' [config.ini]'
+            print(f"\n File {sys.argv[1]} does not exists")
+            print("\n" + sys.argv[0] + ' [config.ini]')
             sys.exit()
     elif (not os.path.isfile(os.path.expanduser('~/trackdirect/config/' + sys.argv[1]))):
-        print "\n" + sys.argv[0] + ' [config.ini]'
+        print(f"\n File ~/trackdirect/config/{sys.argv[1]} does not exists")
+        print("\n" + sys.argv[0] + ' [config.ini]')
         sys.exit()
 
     config = TrackDirectConfig()
diff --git a/server/bin/stationremover.py b/server/bin/stationremover.py
index 1a7a1101f3f6ca7cb724831b32a338fc7a5c18cd..5cc52c149e4f2aac36ec89dc66319b1ef3e98ee5 100644
--- a/server/bin/stationremover.py
+++ b/server/bin/stationremover.py
@@ -1,10 +1,7 @@
-import trackdirect
 import sys
 import os.path
 import logging
 import logging.handlers
-import psycopg2
-import psycopg2.extras
 import datetime
 import time
 
@@ -15,14 +12,16 @@ from trackdirect.TrackDirectConfig import TrackDirectConfig
 if __name__ == '__main__':
 
     if (len(sys.argv) < 3):
-        print "\n" + sys.argv[0] + ' [config.ini] [staion id]'
+        print("\n" + sys.argv[0] + ' [config.ini] [staion id]')
         sys.exit()
     elif (sys.argv[1].startswith("/")):
         if (not os.path.isfile(sys.argv[1])):
-            print "\n" + sys.argv[0] + ' [config.ini] [staion id]'
+            print(f"\n File {sys.argv[1]} does not exists")
+            print("\n" + sys.argv[0] + ' [config.ini] [staion id]')
             sys.exit()
     elif (not os.path.isfile(os.path.expanduser('~/trackdirect/config/' + sys.argv[1]))):
-        print "\n" + sys.argv[0] + ' [config.ini] [staion id]'
+        print(f"\n File ~/trackdirect/config/{sys.argv[1]} does not exists")
+        print("\n" + sys.argv[0] + ' [config.ini] [staion id]')
         sys.exit()
 
     stationId = sys.argv[2]