diff --git a/app/components/simple-voting/PollsList.js b/app/components/simple-voting/PollsList.js
index c362def..58928ae 100644
--- a/app/components/simple-voting/PollsList.js
+++ b/app/components/simple-voting/PollsList.js
@@ -18,7 +18,7 @@ import CircularProgress from '@material-ui/core/CircularProgress';
 import { withStyles } from '@material-ui/core/styles';
 import { VotingContext } from '../../context';
 import rlp from 'rlp';
-
+window.PollManager = PollManager;
 const styles = {
   card: {
     display: 'flex',
@@ -102,7 +102,7 @@ class Poll extends PureComponent {
 
     this.setState({isSubmitting: true});
 
-    const { vote, poll, unvote } = PollManager.methods;
+    const { vote, unvote } = PollManager.methods;
     const { updatePoll, idPoll } = this.props;
     const { votes } = this.state;
     const { toWei } = web3.utils;
@@ -150,7 +150,6 @@ class Poll extends PureComponent {
     const cantVote = balance == 0 || !_canVote;
     const disableVote = cantVote || isSubmitting;
 
-
     const quadVotes = [];
     const sntTotals = [];
     for(let i = 0; i < _numBallots; i++){
@@ -213,7 +212,7 @@ class Poll extends PureComponent {
          
           {cantVote && <Typography variant="body2" color="error">
             {balance == 0 && <span>Voting disabled for proposals made when there was no SNT in the account</span>}
-            {balance != 0 && !_canVote && <span>You can not vote on this poll</span>}
+            {balance != 0 && cantVote && <span>Voting is not enabled for this poll</span>}
           </Typography>}
 
 
@@ -267,7 +266,7 @@ const PollsList = ({ classes }) => (
       <Fragment>
         {rawPolls
           .sort(sortingFn[pollOrder])
-          .map((poll, i) => <Poll key={poll.idPoll} classes={classes} appendToPoll={appendToPoll} updatePoll={updatePoll} ideaSites={ideaSites} {...poll} />)}
+          .map((poll, i) => !poll._canceled && <Poll key={poll.idPoll} classes={classes} appendToPoll={appendToPoll} updatePoll={updatePoll} ideaSites={ideaSites} {...poll} />)}
       </Fragment>
     }
   </VotingContext.Consumer>
@@ -295,14 +294,13 @@ class BallotSlider extends Component {
     const {value} = this.state;
     const nextVote = value + 1;
 
-
     //cantVote={cantVote} balance={balance}
 
 
     return <Fragment>
-              <Slider  classes={{ thumb: classes.thumb }} style={{ width: '95%' }} value={value} min={0} max={maxVotes} step={1}  onChange={this.handleChange} />
-              {balance > 0 && <b>Your votes: {value} ({value * value} SNT)</b>}
-              { nextVote <= maxVotesAvailable ? <small>- Additional vote will cost {nextVote*nextVote - value*value} SNT</small> : (balance > 0 && <small>- Not enough balance available to buy additional votes</small>) }
+              <Slider disabled={cantVote} classes={{ thumb: classes.thumb }} style={{ width: '95%' }} value={value} min={0} max={maxVotes} step={1}  onChange={this.handleChange} />
+              {balance > 0 && !cantVote && <b>Your votes: {value} ({value * value} SNT)</b>}
+              { nextVote <= maxVotesAvailable && !cantVote ? <small>- Additional vote will cost {nextVote*nextVote - value*value} SNT</small> : (balance > 0 && !cantVote && <small>- Not enough balance available to buy additional votes</small>) }
           </Fragment>
   }
 }
diff --git a/contracts/polls/PollManager.sol b/contracts/polls/PollManager.sol
index 1f3454c..f969f5c 100644
--- a/contracts/polls/PollManager.sol
+++ b/contracts/polls/PollManager.sol
@@ -119,12 +119,12 @@ contract PollManager is Controlled {
         Poll storage p = _polls[_idPoll];
         
         require(!p.canceled, "Poll has been canceled already");
-        require(p.endBlock < block.number, "Only active polls can be canceled");
+        require(p.endBlock > block.number, "Only active polls can be canceled");
 
-        if(p.startBlock <= block.number){
+        if(p.startBlock < block.number){
             require(msg.sender == controller, "Only the controller can cancel the poll");
         } else {
-            require(p.author == msg.sender, "Only the controller can cancel the poll");
+            require(p.author == msg.sender, "Only the owner can cancel the poll");
         }
 
         p.canceled = true;
@@ -247,6 +247,7 @@ contract PollManager is Controlled {
         uint8 _numBallots,
         bool _finalized,
         uint _voters,
+        address _author,
         uint[15] _tokenTotal,
         uint[15] _quadraticVotes
     )
@@ -261,6 +262,7 @@ contract PollManager is Controlled {
         _canVote = canVote(_idPoll);
         _description = p.description;
         _numBallots = p.numBallots;
+        _author = p.author;
         _finalized = (!p.canceled) && (block.number >= _endBlock);
         _voters = p.voters;