The invention relates to a method for producing a transverse sealing seam in a tubular bag having a longitudinal sealing seam, wherein the tubular bag is passed through between a sonotrode and an anvil and, in order to produce the transverse sealing seam, the sonotrode and the anvil are moved toward each other so that a welding force is applied to the tubular bag. The adjusting body includes an outer surface enclosing a cavity, wherein the cavity includes an inner surface configured to accommodate an insert and a spring. An electronic game may comprise or otherwise relate to an online world. The system comprises means for allowing at least one computer system of the plurality of computer systems to fail, means for retaining a plurality of locks of the at least one computer system and means for restarting the at least one computer system utilizing minimal resources. , to simplify the dispatching operation as well as reduce the dispatching cost, while at the same time, advertisers who put advertising on postcards can simplify the dispatching operation as well as improve the advertising effect.