diff --git a/Admin/Templates/playerinfo.tpl b/Admin/Templates/playerinfo.tpl
index 598c76c9..90b3d093 100644
--- a/Admin/Templates/playerinfo.tpl
+++ b/Admin/Templates/playerinfo.tpl
@@ -1,4 +1,4 @@
-<? php
+<?php
 
 #################################################################################
 ##              -= YOU MAY NOT REMOVE OR CHANGE THIS NOTICE =-                 ##
diff --git a/Admin/Templates/resetServer.php b/Admin/Templates/resetServer.php
index 983646d3..2f3c56f1 100644
--- a/Admin/Templates/resetServer.php
+++ b/Admin/Templates/resetServer.php
@@ -41,7 +41,7 @@ if($keepAdmin){
 // 2. Golim tot - fără FK checks
 mysqli_query($GLOBALS["link"], "SET FOREIGN_KEY_CHECKS=0");
 
-$tables = ["a2b","abdata","activate","active","admin_log","alidata","ali_invite","ali_log","ali_permission","allimedal","artefacts","attacks","banlist","bdata","build_log","chat","deleting","demolition","diplomacy","enforcement","farmlist","fdata","forum_cat","forum_edit","forum_post","forum_survey","forum_topic","general","gold_fin_log","hero","illegal_log","links","login_log","market","market_log","mdata","medal","movement","ndata","online","odata","password","prisoners","raidlist","research","route","send","tdata","tech_log","training","units","vdata","wdata","ww_attacks","users"];
+$tables = ["a2b","abdata","activate","active","admin_log","alidata","ali_invite","ali_log","ali_permission","allimedal","artefacts","attacks","banlist","bdata","build_log","chat","deleting","demolition","diplomacy","enforcement","farmlist","fdata","forum_cat","forum_edit","forum_post","forum_survey","forum_topic","general","gold_fin_log","hero","illegal_log","links","login_log","market","market_log","mdata","medal","movement","ndata","online","odata","password","prisoners","raidlist","research","route","send","tdata","tech_log","training","units","vdata","wdata","ww_attacks","croppers","users"];
 
 foreach($tables as $t){
     mysqli_query($GLOBALS["link"], "TRUNCATE TABLE `".TB_PREFIX.$t."`");
diff --git a/Dockerfile b/Dockerfile
index f81c404a..b27d712b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,6 +23,11 @@ RUN docker-php-ext-configure gd --with-freetype --with-jpeg \
 # Enable Apache modules
 RUN a2enmod rewrite headers
 
+# Use the production PHP configuration as a baseline, then apply our overrides
+# so that errors are hidden from end users and logged server-side instead.
+RUN cp "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
+COPY docker/php/zz-travianz.ini "$PHP_INI_DIR/conf.d/zz-travianz.ini"
+
 # Set working directory
 WORKDIR /var/www/html
 
diff --git a/GameEngine/Database.php b/GameEngine/Database.php
index c0711b19..8a4e8792 100755
--- a/GameEngine/Database.php
+++ b/GameEngine/Database.php
@@ -462,7 +462,16 @@ class MYSQLi_DB implements IDbConnection {
 	    $this->dbname   = $dbname;
 
 	    // connect to the DB
-	    if (!$this->connect()) die(mysqli_error($this->dblink));
+	    if (!$this->connect()) {
+	        // $this->dblink is FALSE here, so we cannot call mysqli_error() on it.
+	        // Use mysqli_connect_error() and show a friendly, actionable message.
+	        $error = mysqli_connect_error();
+	        die("Database connection failed: " . htmlspecialchars(
+	            $error !== null && $error !== ''
+	                ? $error
+	                : 'could not connect to the database server. Please check the host, port and credentials. (When running with Docker, the database host is usually "db", not "localhost".)'
+	        ));
+	    }
 
 		// we will operate in UTF8
 		mysqli_query($this->dblink,"SET NAMES 'UTF8'");
diff --git a/GameEngine/Logging.php b/GameEngine/Logging.php
index ccb5df34..4c7e9876 100755
--- a/GameEngine/Logging.php
+++ b/GameEngine/Logging.php
@@ -110,7 +110,7 @@ class Logging {
 			$log = "Finish construction and research with gold";
 			list($log) = $database->escape_input($log);
 
-			$q = "Insert into " . TB_PREFIX . "gold_fin_log values (0,$wid,'$log')";
+			$q = "INSERT INTO " . TB_PREFIX . "gold_fin_log (wid, action, time, details) VALUES ($wid, 'Finish all constructions', " . time() . ", '$log')";
 			$database->query($q);
 		}
 	}
diff --git a/docker/php/zz-travianz.ini b/docker/php/zz-travianz.ini
new file mode 100644
index 00000000..d6ddb920
--- /dev/null
+++ b/docker/php/zz-travianz.ini
@@ -0,0 +1,11 @@
+; TravianZ production PHP settings
+; -----------------------------------------------------------------------------
+; Do NOT show PHP errors, warnings or stack traces to end users. Leaking server
+; paths and internal structure is both a security risk and makes the game look
+; unstable. Errors are still logged server-side (visible via `docker logs`).
+display_errors = Off
+display_startup_errors = Off
+log_errors = On
+error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT & ~E_NOTICE & ~E_WARNING
+; Send the error log to the container's stderr so it shows up in `docker logs web`.
+error_log = /dev/stderr
diff --git a/var/db/struct.sql b/var/db/struct.sql
index f525f1cb..e8ce958e 100644
--- a/var/db/struct.sql
+++ b/var/db/struct.sql
@@ -905,6 +905,7 @@ CREATE TABLE IF NOT EXISTS `%PREFIX%gold_fin_log` (
   gold int(11) NOT NULL DEFAULT 0,
   time int(11) NOT NULL DEFAULT 0,
   log varchar(255) DEFAULT NULL,
+  details varchar(255) DEFAULT NULL,
   PRIMARY KEY (id),
   KEY uid (uid),
   KEY time (time)
@@ -1776,13 +1777,12 @@ CREATE TABLE IF NOT EXISTS %PREFIX%croppers (
 	fieldtype TINYINT UNSIGNED NOT NULL, -- 1 = 9c, 6 = 15c
 	best_oasis_bonus TINYINT UNSIGNED NOT NULL, -- 0,25,50,75,100,125,150
 	updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-	CHECK (best_oasis_bonus IN (0,25,50,75,100,125,150))
+	CHECK (best_oasis_bonus IN (0,25,50,75,100,125,150)),
+	KEY idx_ft_bonus_xy (fieldtype, best_oasis_bonus, x, y),
+	KEY idx_xy (x, y),
+	KEY idx_bonus (best_oasis_bonus)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
-CREATE INDEX idx_ft_bonus_xy ON %PREFIX%croppers (fieldtype, best_oasis_bonus, x, y);
-CREATE INDEX idx_xy ON %PREFIX%croppers (x, y);
-CREATE INDEX idx_bonus ON %PREFIX%croppers (best_oasis_bonus);
-
 --
 -- Dumping data for table `%prefix%croppers`
 --