* posts.poster_email - removed NULL

app/Models/Pages/Install.php

@@ -653,7 +653,7 @@ class Install extends Page
                 'poster'       => ['VARCHAR(190)', false, ''],
                 'poster_id'    => ['INT(10) UNSIGNED', false, 1],
                 'poster_ip'    => ['VARCHAR(45)', false, ''],
-                'poster_email' => ['VARCHAR(80)', true],
+                'poster_email' => ['VARCHAR(80)', false, ''],
                 'message'      => ['MEDIUMTEXT', false, ''],
                 'hide_smilies' => ['TINYINT(1)', false, 0],
                 'edit_post'    => ['TINYINT(1)', false, 0],

app/Models/Pages/Post.php

@@ -190,7 +190,7 @@ class Post extends Page
             $post->poster       = $username;
             $post->poster_id    = $this->user->id;
             $post->poster_ip    = $this->user->ip;
-            $post->poster_email = $v->email;
+            $post->poster_email = (string) $v->email;
             $post->message      = $v->message; //?????
             $post->hide_smilies = $v->hide_smilies ? 1 : 0;
 #           $post->edit_post    =