The ingame description matches now the correctly stated dev diary effect descriptions
<table style="border: 1px dashed black; margin: 0px; padding: 6px; background-color: rgb(235, 222, 193); width:800px">    <tbody>        <tr>            <th>Name</th>            <th>Effect</th>            <th>Cost of production</th>            <th>Production time</th>        </tr>        <tr style="background-color: white;">            <td><span style="padding-left: 7%">
</span></td>            <td>               
+100% output Festival Hall for 
8 hours (
12 hours on friend/guild member)
Not giftable, not tradable, not deletable, not redeemable </td>            <td colspan="1"> 
100 Candles
80 Cake dough
</td>            <td colspan="1">                
Lvl. 1 Provision House: 20 minutes
Rarity Provision House: 4 minutes
 </td>        </tr>        <tr>            <td><span style="padding-left: 7%">
</span></td>            <td>                
+200% output Festival Hall for 
8 hours (
12 hours on friend/guild member)
Giftable via in-game merchant interface, not tradable, not deletable, not redeemable </td>            <td colspan="1"> 
500 Candles
400 Cake dough
</td>            <td colspan="1">                
Lvl. 1 Provision House: 40 minutes
Rarity Provision House: 8 minutes
 </td>        </tr>        </td>        </tr>        </td>        </tr>    </tbody></table>
You are invited to provide your feedback > 
here <