More missing 'class' in Trade Report.

flexible.py

@@ -1841,6 +1841,8 @@ class ScriptTerror(object):
                         # Ok, we can get there -- and get back!
                         if w > sector and w in self.game.gamedata.ports and not GameData.port_burnt(self.game.gamedata.ports[w]):
                             wd = self.game.gamedata.ports[w]
+                            if 'class' not in wd:
+                                continue
                             wc = wd['class']
 
                             if pc in (1,5) and wc in (2,4):
@@ -1859,6 +1861,8 @@ class ScriptTerror(object):
         for sector in sorted(self.game.gamedata.ports.keys()):
             pd = self.game.gamedata.ports[sector]
             if not GameData.port_burnt(pd):
+                if 'class' not in pd:
+                    continue
                 pc = pd['class']
 
                 # Ok, let's look into it.
@@ -1872,6 +1876,8 @@ class ScriptTerror(object):
                         # Ok, we can get there -- and get back!
                         if w > sector and w in self.game.gamedata.ports and not GameData.port_burnt(self.game.gamedata.ports[w]):
                             wd = self.game.gamedata.ports[w]
+                            if 'class' not in wd:
+                                continue
                             wc = wd['class']
 
                             if GameData.port_trading(pd['port'], self.game.gamedata.ports[w]['port']):
@@ -2536,6 +2542,8 @@ class ProxyMenu(object):
                         if w > sector and w in self.game.gamedata.ports and not GameData.port_burnt(self.game.gamedata.ports[w]):
                             # it is > and has a port.
                             wd = self.game.gamedata.ports[w]
+                            if 'class' not in wd:
+                                continue
                             wc = wd['class']
 
                             # 1: "BBS",