diff --git a/upload/source/admincp/admincp_forums.php b/upload/source/admincp/admincp_forums.php
index 41a92fd6e93cf4b390c839bd7613be4d417e2c6f..394f6c9f63ce09e6520b6c1a65ecf6b16dbf9f94 100644
--- a/upload/source/admincp/admincp_forums.php
+++ b/upload/source/admincp/admincp_forums.php
@@ -57,7 +57,7 @@ var rowtypedata = [
 		}
 
 		foreach ($groups as $id => $gforum) {
-			$toggle = $forumcount > 50 && count($forums[$id]) > 2;
+			$toggle = $forumcount > 50 && isset($forums[$id]) && is_array($forums[$id]) && count($forums[$id]) > 2;
 			$showed[] = showforum($gforum, 'group', '', $toggle);
 			if(!empty($forums[$id])) {
 				foreach ($forums[$id] as $forum) {
diff --git a/upload/source/class/class_image.php b/upload/source/class/class_image.php
index 636a3388aa8c169c1f9ffeb0cbc61ead149ddefd..6accabfcae385eff13dd469c79fc5781af0e4211 100644
--- a/upload/source/class/class_image.php
+++ b/upload/source/class/class_image.php
@@ -485,7 +485,7 @@ class image {
 			}
 
 			$watermarktextcvt = pack("H*", $this->param['watermarktext']['text'][$type]);
-			$box = imagettfbbox($this->param['watermarktext']['size'][$type], $this->param['watermarktext']['angle'][$type], $this->param['watermarktext']['fontpath'][$type], $watermarktextcvt);
+			$box = imagettfbbox(floatval($this->param['watermarktext']['size'][$type]), floatval($this->param['watermarktext']['angle'][$type]), $this->param['watermarktext']['fontpath'][$type], $watermarktextcvt);
 			$logo_h = max($box[1], $box[3]) - min($box[5], $box[7]);
 			$logo_w = max($box[2], $box[4]) - min($box[0], $box[6]);
 			$ax = min($box[0], $box[6]) * -1;