Definitively there is no such file on the server: router-old.php
This is what the installer outputs:
Joomla\Filesystem\File::delete: Failed deleting inaccessible file router-old.php
Before updating ensure that the update is compatible with your Joomla! installation.
You are strongly advised to make a backup of your site's files and database before you start updating.
danger
Error updating component.
Phoca Download is download manager for Joomla! CMS. It includes component, modules and plugins and allows displaying files on website which can be downloaded (previewed, played) by website visitors.
This is what I see in debug:
$_SERVER
array:55 [
"USER" => "webgobec"
"HOME" => "/home/webgobec"
"SCRIPT_NAME" => "/administrator/index.php"
"REQUEST_URI" => "/administrator/index.php?option=com_installer&view=update"
"QUERY_STRING" => "option=com_installer&view=update"
"REQUEST_METHOD" => "GET"
"SERVER_PROTOCOL" => "HTTP/2.0"
"GATEWAY_INTERFACE" => "CGI/1.1"
"REMOTE_PORT" => "65323"
"SCRIPT_FILENAME" => "/home/webgobec/public_html/administrator/index.php"
"SERVER_ADMIN" => "
webmaster@webgobe.com"
"CONTEXT_DOCUMENT_ROOT" => "/home/webgobec/public_html"
"CONTEXT_PREFIX" => ""
"REQUEST_SCHEME" => "https"
"DOCUMENT_ROOT" => "/home/webgobec/public_html"
"REMOTE_ADDR" => "78.97.228.211"
"SERVER_PORT" => "443"
"SERVER_ADDR" => "209.59.132.190"
"SERVER_NAME" => "webgobe.com"
"SERVER_SOFTWARE" => "Apache"
"SERVER_SIGNATURE" => ""
"PATH" => "/usr/local/jdk/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/usr/local/bin:/usr/X11R6/bin:/root/bin:/opt/bin"
"HTTP_HOST" => "webgobe.com"
"HTTP_TE" => "trailers"
"HTTP_SEC_FETCH_USER" => "?1"
"HTTP_SEC_FETCH_SITE" => "same-origin"
"HTTP_SEC_FETCH_MODE" => "navigate"
"HTTP_SEC_FETCH_DEST" => "document"
"HTTP_UPGRADE_INSECURE_REQUESTS" => "1"
"HTTP_COOKIE" => "atumSidebarState=open; _ga_LM8RE64VXQ=GS1.1.1697869713.2.0.1697869713.0.0.0; _ga=GA1.1.1518700235.1692598699; _ga_CHXBNPG173=GS1.1.1697869713.2.0.1697869714.0.0.0; _ga_2BLN31BGWS=GS1.1.1697869417.3.0.1697869417.0.0.0; _ga_3NLK4SGDM0=GS1.1.1697869417.3.0.1697869420.0.0.0; _ga_08HKJ9N3CC=GS1.1.1697967330.27.0.1697967330.0.0.0; _ga_269016637=GS1.1.1697967330.25.0.1697967330.0.0.0; _ga_VX119DWKY6=GS1.1.1696094605.4.1.1696094811.0.0.0; admintools_adminaccess_f41ad916b517145ae5ac6dd7fa8f9438=TU7F7qC115Ac7k1lHGrYt0LtWHZcBYFs.ceVvxFyoeRsIMOGZSkah; _ga_VQR1TR2Z8R=GS1.1.1697992906.6.0.1697992906.0.0.0; _uetvid=4e4a09609a7a11eda9d32753618aa2ea; trustedsite_visit=1; _gid=GA1.2.204347626.1697965209; f3772b14ce2a7074ff58d32c4f81bad7=13ba45935910e5c9efe6cc842114f8ba; dbb01d07d652b3a8302a8dc24947ca86=0a3ae4863c642e806c160712910df493; googtrans=/sv/en"
"HTTP_REFERER" => "
https://webgobe.com/administrator/index ... iew=update"
"HTTP_ACCEPT_ENCODING" => "gzip, deflate, br"
"HTTP_ACCEPT_LANGUAGE" => "en-US,en;q=0.5"
"HTTP_ACCEPT" => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"
"HTTP_USER_AGENT" => "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0"
"proxy-nokeepalive" => "1"
"H2_STREAM_TAG" => "92128-81-51"
"H2_STREAM_ID" => "51"
"H2_PUSHED_ON" => ""
"H2_PUSHED" => ""
"H2_PUSH" => "on"
"H2PUSH" => "on"
"HTTP2" => "on"
"SSL_TLS_SNI" => "webgobe.com"
"HTTPS" => "on"
"HTTP_AUTHORIZATION" => ""
"SCRIPT_URI" => "
https://webgobe.com/administrator/index.php"
"SCRIPT_URL" => "/administrator/index.php"
"UNIQUE_ID" => "ZTVW-75PpfFuwJZhwb7BFQAAShQ"
"FCGI_ROLE" => "RESPONDER"
"PHP_SELF" => "/administrator/index.php"
"REQUEST_TIME_FLOAT" => 1697994491.1402
"REQUEST_TIME" => 1697994491
"argv" => array:1 [
0 => "option=com_installer&view=update"
]
"argc" => 1
]