This is the stacktrace with TB 1.6 php version 8.0 and higher (I tried it on a couple of versions)
#0 classes/webservice/WebserviceOutputBuilder.php(829)
#1 classes/webservice/WebserviceOutputBuilder.php(829): str_repeat("\t", -1)
#2 classes/webservice/WebserviceOutputBuilder.php(570): WebserviceOutputBuilderCore->setIndent(1)
#3 classes/webservice/WebserviceSpecificManagementImages.php(1234): WebserviceOutputBuilderCore->renderEntity(Image#1, 1)
#4 classes/webservice/WebserviceSpecificManagementImages.php(947): WebserviceSpecificManagementImagesCore->writePostedImageOnDisk("", null, null, array(17), "/home/customer/www/stargeezerstuff.com/public_html/img/p/")
#5 classes/webservice/WebserviceSpecificManagementImages.php(649): WebserviceSpecificManagementImagesCore->manageDeclinatedImagesCRUD(false, "", array(17), "/home/customer/www/stargeezerstuff.com/public_html/img/p/")
#6 classes/webservice/WebserviceSpecificManagementImages.php(728): WebserviceSpecificManagementImagesCore->manageEntityDeclinatedImages("/home/customer/www/stargeezerstuff.com/public_html/img/p/", array(17))
#7 classes/webservice/WebserviceSpecificManagementImages.php(739): WebserviceSpecificManagementImagesCore->manageDeclinatedImages("/home/customer/www/stargeezerstuff.com/public_html/img/p/")
#8 classes/webservice/WebserviceSpecificManagementImages.php(361): WebserviceSpecificManagementImagesCore->manageProductImages()
#9 classes/webservice/WebserviceSpecificManagementImages.php(226): WebserviceSpecificManagementImagesCore->manageImages()
#10 classes/webservice/WebserviceRequest.php(633): WebserviceSpecificManagementImagesCore->manage()
#11 webservice/dispatcher.php(102): WebserviceRequestCore->fetch("fdecdc63747f250c2d33c089db648b26", "POST", "images/products/242", array(0) [], false, "")