[SIGPLUS_EXCEPTION_SOURCE] Image source is expected to be a full URL or a path relative to the image base folder specified in the back-end but IIBIEGJORDANOWSKI2019-REGULAMIN is neither a URL nor a relative path to an existing file or folder.

[SIGPLUS_EXCEPTION_HTML] Image source is expected to be typed as plain text but <a>KONCERTTURKA2019</a> appears to contain HTML tags. Please make sure the image source path or URL is either entered using the keyboard or pasted as plain text.