diff --git a/src/AbraFlexi/RO.php b/src/AbraFlexi/RO.php
index b47de4e1..f828ea58 100644
--- a/src/AbraFlexi/RO.php
+++ b/src/AbraFlexi/RO.php
@@ -368,14 +368,6 @@ public function __construct($init = null, $options = [])
         $this->setObjectName(\array_key_exists('objectName', $options) ? $options['objectName'] : null);
     }
 
-    /**
-     * Disconnect CURL before pass away.
-     */
-    public function __destruct()
-    {
-        $this->disconnect();
-    }
-
     /**
      * Obtain record/object identificator code: or id:
      *
@@ -1489,24 +1481,11 @@ public function setAction(string $action)
         return $result;
     }
 
-    /**
-     * Disconnect from AbraFlexi.
-     */
-    public function disconnect(): void
-    {
-        if ((null === $this->curl) === false) {
-            curl_close($this->curl);
-        }
-
-        $this->curl = null;
-    }
-
     /**
      * Reset Curl Connection.
      */
     public function connectionReset(): void
     {
-        $this->disconnect();
         $this->curlInit();
     }
 
@@ -1888,7 +1867,7 @@ public function getSumsFromAbraFlexi(
      * Return columns from AbraFlexi according to conditions.
      *
      * @param array<string>|string $columnsList List of items or detail level: id|summary|full
-     * @param array<string, mixed> $conditions  Array of conditions or record ID
+     * @param array<string|int, mixed> $conditions  Array of conditions or record ID
      * @param null|string          $indexBy     Column by which to index records
      *
      * @return null|array<int|string, array<string, mixed>> Records
@@ -2158,7 +2137,7 @@ public function getExternalID($want = null)
     {
         $ids = (array) $this->getExternalIDs();
 
-        return \array_key_exists($want, $ids) ? $ids[$want] : current($ids);
+        return $want !== null && \array_key_exists($want, $ids) ? $ids[$want] : current($ids);
     }
 
     /**
diff --git a/tests/src/AbraFlexi/ROTest.php b/tests/src/AbraFlexi/ROTest.php
index 79ff8dd1..ea1792c0 100644
--- a/tests/src/AbraFlexi/ROTest.php
+++ b/tests/src/AbraFlexi/ROTest.php
@@ -532,18 +532,6 @@ protected function tearDown(): void
     //    }
     //
     //    /**
-    //     * @covers \AbraFlexi\RO::disconnect
-    //     *
-    //     * @todo   Implement testdisconnect().
-    //     */
-    //    public function testdisconnect(): void
-    //    {
-    //        $this->assertEquals('', $this->object->disconnect());
-    //        // Remove the following lines when you implement this test.
-    //        $this->markTestIncomplete('This test has not been implemented yet.');
-    //    }
-    //
-    //    /**
     //     * @covers \AbraFlexi\RO::connectionReset
     //     *
     //     * @todo   Implement testconnectionReset().