To: BurezuWolf
Hello,
To avoid the error please try seting below normal priority in AVS Video Editor>Edit>Settings>Processing>Priority and also disable Intel Media Codec in processing. Then restart the program and try producing your project again.
If it does no help, please specify the format of the files you work with and their total size. Also, please specify which format you save videos to and which presets with output settings you select.
Best regards.