Fix typo

server/session.py

@@ -350,7 +350,7 @@ class ElectrumX(SessionBase):
                 with codecs.open(banner_file, 'r', 'utf-8') as f:
                     banner = f.read()
             except Exception as e:
-                self.loggererror(f'reading banner file {banner_file}: {e}')
+                self.logger.error(f'reading banner file {banner_file}: {e}')
             else:
                 banner = await self.replaced_banner(banner)
 
@@ -547,9 +547,8 @@ class DashElectrumX(ElectrumX):
         result = []
 
         def get_masternode_payment_queue(mns):
-            ''' 
-            Returns the calculated position in the payment queue for all the valid 
-            masterernodes in the given mns list.
+            '''Returns the calculated position in the payment queue for all the
+            valid masterernodes in the given mns list.
 
             mns: a list of masternodes information.
             '''