Ticket-Mail with attachment leads to brocken ticket

<span class="dijit dijitReset dijitInline detailTabClass dijitButton dijitButtonHover dijitHover" role="presentation" widgetid="hideStreamButton" style="width: 100%; height: 100%; overflow: auto;"><span class="dijitReset dijitInline dijitButtonNode" data-dojo-attach-event="ondijitclick:__onClick" role="presentation"><span class="dijitReset dijitStretch dijitButtonContents" data-dojo-attach-point="titleNode,focusNode" role="button" aria-labelledby="hideStreamButton_label" tabindex="0" id="hideStreamButton" title="Hide activity streams" style="user-select: none;"><span class="dijitReset dijitInline dijitIcon imageColorNewGui iconActivityStreamClose22 iconActivityStreamClose iconSize22<div id=" data-dojo-attach-point="iconNode"></span><span class="dijitReset dijitToggleButtonIconChar">●</span><span class="dijitReset dijitInline dijitButtonText dijitDisplayNone" id="hideStreamButton_label" data-dojo-attach-point="containerNode">   <div><div class="dijitTitlePane titlePaneFromDetail generalColClass _sec_AttachmentClass" id="Ticket_Attachment" widgetid="Ticket_Attachment" style="display: inline-block; position: relative; width: 3791px; float: left; clear: none; margin: 4px 0px 4px 15px; padding: 0px; top: 0px;">
    <div data-dojo-attach-event="ondijitclick:_onTitleClick, onkeydown:_onTitleKey" class="dijitTitlePaneTitle dijitTitlePaneTitleOpen dijitOpen" data-dojo-attach-point="titleBarNode" id="Ticket_Attachment_titleBarNode" style="">
        <div class="dijitTitlePaneTitleFocus" data-dojo-attach-point="focusNode" role="button" aria-controls="Ticket_Attachment_pane" tabindex="0" aria-pressed="true">
            <span data-dojo-attach-point="arrowNode" class="dijitInline dijitArrowNode" role="presentation"></span><span data-dojo-attach-point="arrowNodeInner" class="dijitArrowNodeInner">-</span><span data-dojo-attach-point="titleNode" class="dijitTitlePaneTextNode" style="user-select: none;">Anhänge<div id="AttachmentBadge" class="sectionBadge">7</div></span>
        </div>
    </div>
    <div class="dijitTitlePaneContentOuter" data-dojo-attach-point="hideNode" role="presentation">
        <div class="dijitReset" data-dojo-attach-point="wipeNode" role="presentation">
            <div class="dijitTitlePaneContentInner" data-dojo-attach-point="containerNode" role="region" id="Ticket_Attachment_pane" aria-labelledby="Ticket_Attachment_titleBarNode" aria-hidden="false"> <table class="detail" style="width: 100%;"><input type="hidden" id="attachmentIdle" value="0"><tbody><tr><td colspan="2"><table width="100%"><tbody><tr><td class="attachmentHeader smallButtonsGroup" style="width:5%"><a onclick="addAttachment('file');" title="Anhang hinzufügen"> <span class="roundedButtonSmall" style="top:0px;display:inline-block;width:16px;height:16px;"><div id="idIconAdd" class="iconButtonAdd16 iconButtonAdd iconSize16" style=""> </div></span></a><a onclick="addAttachment('link');" title="Hyperlink für Datei oder Web-Seite hinzufügen"> <span class="roundedButtonSmall" style="top:0px;display:inline-block;width:16px;height:16px;"><div id="idIconLink" class="iconButtonLink16 iconButtonLink iconSize16" style=""> </div></span></a></td><td class="attachmentHeader" style="width:5%">ID</td><td colspan="2" class="attachmentHeader" style="width:85%">Datei</td></tr><tr><td class="attachmentData smallButtonsGroup" style="width:5%" "=""><a href="../tool/download.php?class=Attachment&amp;id=66" target="printFrame" title="Lade diese Datei herunter."><span class="roundedButtonSmall" style="top:0px;display:inline-block;width:16px;height:16px;"><div id="idIconDownload" class="iconButtonDownload16 iconButtonDownload iconSize16" style=""> </div></span></a> <a onclick="editAttachment(66);" title="[editAttachment]"><span class="roundedButtonSmall" style="top:0px;display:inline-block;width:16px;height:16px;"><div id="idIconEdit" class="iconButtonEdit16 iconButtonEdit iconSize16" style=""> </div></span></a> <a onclick="removeAttachment(66);" title="lösche Anhang"><span class="roundedButtonSmall" style="top:0px;display:inline-block;width:16px;height:16px;"><div id="idIconRemove" class="iconButtonRemove16 iconButtonRemove iconSize16" style=""> </div></span></a></td><td class="attachmentData" style="width:5%;">#66</td><td class="attachmentData" style="width:5%;border-right:none;text-align:center;min-width:21px;max-width:21px"><div class="messageERROR">ERROR : getimagesize(): Error reading from ../files/attach/attachment_66/image003_eedfa2230b0f42e9aad87b325b9a78dd.png!<br>   in file.php<br>   at line 119</div><input type="hidden" id="lastSaveId" value=""><input type="hidden" id="lastOperation" value="ERROR"><input type="hidden" id="lastOperationStatus" value="ERROR"></td></tr></tbody></table></td></tr></tbody></table></div>
        </div>
    </div>
</div></div></span></span></span><input type="button" value="" class="dijitOffScreen" data-dojo-attach-event="onclick:_onClick" tabindex="-1" aria-hidden="true" data-dojo-attach-point="valueNode"></span>

2021-11-30 06:47:52.496 ***** ERROR ***** [V9.3.4] ERROR *****
2021-11-30 06:47:52.496 ***** ERROR ***** [V9.3.4] on file '/var/www/html/tool/file.php' at line (119)
2021-11-30 06:47:52.496 ***** ERROR ***** [V9.3.4] cause = getimagesize(): Error reading from ../files/attach/attachment_66/image003_eedfa2230b0f42e9aad87b325b9a78dd.png!